Biomonitoring airborne parent and alkylated three-ring PAHs in the Greater Cologne Conurbation II: Regional distribution patternsLEHNDORFF, E; SCHWARK, L.Environmental pollution (1987). 2009, Vol 157, Num 5, pp 1706-1713, issn 0269-7491, 8 p.Article

Accumulation histories of major and trace elements on pine needles in the Cologne Conurbation as function of air qualityLEHNDORFF, E; SCHWARK, L.Atmospheric environment (1994). 2008, Vol 42, Num 5, pp 833-845, issn 1352-2310, 13 p.Article

Aromatic hydrocarbon composition of the Permian Kupferschiefer in the Lower Rhine Basin, NW GermanySCHWARK, L; PUÊTTMANN, W.Organic geochemistry. 1990, Vol 16, Num 4-6, pp 749-761, issn 0146-6380, 13 p.Conference Paper

Biomonitoring of air quality in the Cologne Conurbation using pine needles as a passive sampler - Part III: Major and trace elementsLEHNDORFF, E; SCHWARK, L.Atmospheric environment (1994). 2010, Vol 44, Num 24, pp 2822-2829, issn 1352-2310, 8 p.Article

Biomonitoring airborne parent and alkylated three-ring PAHs in the Greater Cologne Conurbation I: Temporal accumulation patternsLEHNDORFF, E; SCHWARK, L.Environmental pollution (1987). 2009, Vol 157, Num 4, pp 1323-1331, issn 0269-7491, 9 p.Article

Biomonitoring of air quality in the Cologne Conurbation using pine needles as a passive sampler: Part II: polycyclic aromatic hydrocarbons (PAH)LEHNDORFF, E; SCHWARK, L.Atmospheric environment (1994). 2004, Vol 38, Num 23, pp 3793-3808, issn 1352-2310, 16 p.Article

Thermal degradation of rye and maize straw : Lipid pattern changes as a function of temperatureWIESENBERG, G. L. B; LEHNDORFF, E; SCHWARK, L et al.Organic geochemistry. 2009, Vol 40, Num 2, pp 167-174, issn 0146-6380, 8 p.Article

Biomonitoring of air quality in the Cologne conurbation using pine needles as a passive sampler: Part I: magnetic propertiesURBAT, M; LEHNDORFF, E; SCHWARK, L et al.Atmospheric environment (1994). 2004, Vol 38, Num 23, pp 3781-3792, issn 1352-2310, 12 p.Article

Molecular memory effects recording the accumulation history of petroleum reservoirs: A case study of the Heidrun Field, offshore NorwayLEYTHAEUSER, D; KEUSER, Ch; SCHWARK, L et al.Marine and petroleum geology. 2007, Vol 24, Num 4, pp 199-220, issn 0264-8172, 22 p.Article

Carbon isotope relationships between sulfide-bound steroids and proposed functionalized lipid precursors in sediments from the Santa Barbara Basin, CaliforniaFILLEY, T. R; FREEMAN, K. H; HATCHER, P. G et al.Organic geochemistry. 1996, Vol 25, Num 5-7, pp 367-377, issn 0146-6380Conference Paper

Influence of the conditions of deposition on the chemistry and the reflectance variations of the Brent coalsRUAU, O; PRADIER, B; LANDAIS, P et al.Organic geochemistry. 1996, Vol 25, Num 5-7, pp 325-339, issn 0146-6380Conference Paper

Accelerated soil formation due to paddy management on marshlands (Zhejiang Province, China)KÖLBL, A; SCHAD, P; SCHLOTER, M et al.Geoderma (Amsterdam). 2014, Vol 228-229, pp 67-89, issn 0016-7061, 23 p.Article

Palaeoenvironmental and source rock occurrence. Biogeochemical cycling of sulphur and other elementsLEYTHAEUSER, D; SCHWARK, L; DE LEEUW, J. W et al.Organic geochemistry. 1996, Vol 25, Num 5-7, issn 0146-6380, 168 p.Conference Proceedings

Molecular weight distribution of olefinic compounds in Precambrian and Palaeozoic oilsMELIKHOV, V. A; FROLOV, E. B; SMIRNOV, M. B et al.Organic geochemistry. 1996, Vol 25, Num 5-7, pp 265-272, issn 0146-6380Conference Paper

Isoarborinol through geological times : evidence for its presence in the Permian and TriassicHAUKE, V; ADAM, P; TRENDEL, J.-M et al.Organic geochemistry. 1995, Vol 23, Num 1, pp 91-93, issn 0146-6380Article

Accumulation histories of magnetic particles on pine needles as function of air qualityLEHNDORFF, E; URBAT, M; SCHWARK, L et al.Atmospheric environment (1994). 2006, Vol 40, Num 36, pp 7082-7096, issn 1352-2310, 15 p.Article

Use of molecular ratios to identify changes in fatty acid composition of Miscanthus x giganteus (Greef et Deu.) plant tissue, rhizosphere and root-free soil during a laboratory experimentWIESENBERG, G. L. B; SCHNECKENBERGER, K; SCHWARK, L et al.Organic geochemistry. 2012, Vol 46, pp 1-11, issn 0146-6380, 11 p.Article

Extractable lipid contents and colour in particle-size separates and bulk arable soilsWIESENBERG, G. L. B; SCHWARK, L; SCHMIDT, M. W. I et al.European journal of soil science. 2006, Vol 57, Num 5, pp 634-643, issn 1351-0754, 10 p.Article

Changes in palaeoenvironmental conditions during deposition of the Permian Kupferschiefer (Lower Rhine Basin, northwest Germany) inferred from molecular and isotopic compositions of biomarker componentsGRICE, K; SCHAEFFER, P; SCHWARK, L et al.Organic geochemistry. 1997, Vol 26, Num 11-12, pp 677-690, issn 0146-6380Article

Molecular indicators of palaeoenvironmental conditions in an immature Permian shale (Kupferschiefer, Lower Rhine Basin, north-west Germany) from free and S-bound lipidsGRICE, K; SCHAEFFER, P; SCHWARK, L et al.Organic geochemistry. 1996, Vol 25, Num 3-4, pp 131-147, issn 0146-6380Article

The Pliensbachian (Early Jurassic) anoxic event in Asturias, northern Spain : Santa Mera Member, Rodiles FormationBORREGO, A. G; HAGEMANN, H. W; BLANCO, C. G et al.Organic geochemistry. 1996, Vol 25, Num 5-7, pp 295-309, issn 0146-6380Conference Paper

Improved automated extraction and separation procedure for soil lipid analysesWIESENBERG, G. L. B; SCHWARK, L; SCHMIDT, M. W. I et al.European journal of soil science. 2004, Vol 55, Num 2, pp 349-356, issn 1351-0754, 8 p.Article

Geological conditions and geochemical effects of secondary petroleum migration and accumulationLEYTHAEUSER, D; SCHWARK, L; KEUSER, Ch et al.Marine and petroleum geology. 2000, Vol 17, Num 7, pp 857-859, issn 0264-8172Article

Early diagenesis of organic matter and related sulphur incorporation in surface sediments of meromictic Lake Cadagno in the Swiss AlpsPUTSCHEW, A; SCHOLZ-BÖTTCHER, B. M; RULLKÖTTER, J et al.Organic geochemistry. 1996, Vol 25, Num 5-7, pp 379-390, issn 0146-6380Conference Paper

Plant and soil lipid modification under elevated atmospheric CO₂ conditions: II. Stable carbon isotopic values (δ¹³C) and turnoverWIESENBERG, G. L. B; SCHWARZBAUER, J; SCHMIDT, M. W. I et al.Organic geochemistry. 2008, Vol 39, Num 1, pp 103-117, issn 0146-6380, 15 p.Article