THE CH₄ CONCENTRATION OVER THE OCEAN AND ITS POSSIBLE VARIATION WITH LATITUDE.EHHALT DH.1978; TELLUS; SWE; DA. 1978; VOL. 30; NO 2; PP. 169-176; ABS. RUS; BIBL. 14 REF.Article

IN SITU MEASUREMENTS OF STRATOSPHERIC TRACE CONSTITUENTS.EHHALT DH.1978; REV. GEOPHYS. SPACE PHYS.; USA; DA. 1978; VOL. 16; NO 2; PP. 217-224; BIBL. 40 REF.Article

THE RESIDENCE TIME OF WATER VAPOR AND AEROSOLS IN THE TROPOSPHERE AND LOWER STRATOSPHEREEHHALT DH.sdIN: INT. CONF. AEROSP. AERONAUT. METEOROL. WASHINGTON, D.C., 1972; BOSTON, MASS.; AM. METEOROL. SOC.; DA. S.D.; PP. 192-193; BIBL. 2REF.Conference Proceedings

IN SITU OBSERVATIONSEHHALT DH.1980; PHILOS. TRANS. R. SOC. LONDON, A; GBR; DA. 1980; VOL. 296; NO 1418; PP. 175-189; BIBL. 2 P.Article

DER ATMOSPHAERISCHE KREISLAUF VON METHAN = LE CYCLE ATMOSPHERIQUE DU METHANEEHHALT DH.1979; VERH. GES DTSCH. NATURFORSCH. AERZTE; DEU; DA. 1979; NO 110; PP. 53-57; ABS. ENG; BIBL. 22 REF.; 7 ILL.Article

VARIATIONS OF THE CARBON AND OXYGEN ISOTOPIC COMPOSITION IN STALAGMITES AND STALACTITES : EVIDENCE OF NON-EQUILIBRIUM ISOTOPIC FRACTIONATION.FANTIDIS J; EHHALT DH.1970; EARTH PLANET. SCI. LETTERS; NLD; 1970(12), VOL. 10, NUM. 0001, P. 136 A 144Miscellaneous

MEASUREMENT OF C₂-C₅ HYDROCARBONS OVER THE NORTH ATLANTICRUDOLPH J; EHHALT DH.1981; J. GEOPHYS. RES.; ISSN 0022-1406; USA; DA. 1981; VOL. 86; NO C12; PP. 11959-11964; BIBL. 18 REF.Article

VERTICAL PROFILES OF MOLECULAR H₂ AND CH₄ IN THE STRATOSPHERE.EHHALT DH; HEIDT LE.1973; IN: AIAA-AMS INT. CONF. ENVIRON. IMPACT AEROSP. OPER. HIGH ATMOS.; DENVER, COLO.; 1973; NEW YORK; AM. INST. AERONAUT. ASTRONAUT.; DA. 1973; VOL. 518; PP. 1-5; BIBL. 12 REF.Conference Paper

SOURCES AND SINKS OF ATMOSPHERIC METHANE.EHHALT DH; SCHMIDT U.1978; PURE APPL. GEOPHYS.; SWITZ.; DA. 1978; VOL. 116; NO 2-3; PP. 452-464; BIBL. 2 P.Article

EFFECTS OF NITROGEN FERTILIZERS AND COMBUSTION ON THE STATOSPHERIC OZONE LAYER.CRUTZEN PJ; EHHALT DH.1977; AMBIO; SWED.; DA. 1977; VOL. 6; NO 2-3; PP. 112-117; BIBL. 1 P. 1/2Article

VERTICAL PROFILES OF MOLECULAR HYDROGEN IN THE TROPOSPHERE AND STRATOSPHERE.EHHALT DH; SCHMIDT U; HEIDT LE et al.1977; J. GEOPHYS. RES.; U.S.A.; DA. 1977; VOL. 82; NO 37; PP. 5907-5911; BIBL. 12 REF.Article

ATMOSPHAERISCHE KREISLAEUFE VON STICKOXIDEN UND AMMONIAK = CIRCULATION ATMOSPHERIQUE DES OXYDES D'AZOTE ET DE L'AMMONIACBOTTGER A; EHHALT DH; GRAVENHORST G et al.1978; BER. KERNFORSCH.-ANLAGE JUELICH; DEU; DA. 1978; NO 1558; PP. 1-96; ABS. ENG; BIBL. 60 P.Serial Issue

MEASUREMENT OF STRATOSPHERIC WATER VAPOR BY CRYOGENIC COLLECTIONPOLLOCK W; HEIDT LE; LUEB R et al.1980; J. GEOPHYS. RES.; ISSN 0022-1406; USA; DA. 1980; VOL. 85; NO CIO; PP. 5555-5568; BIBL. 17 REF.Article

CONCENTRATIONS OF CH₄, CO, CO₂, H₂, H₂O AND N₂O IN THE UPPER STRATOSPHERE.EHHALT DH; HEIDT LE; LUEB RH et al.1975; J. ATMOSPH. SCI.; U.S.A.; DA. 1975; VOL. 32; NO 1; PP. 163-169; BIBL. 16 REF.Article

THE VERTICAL DISTRIBUTION OF TRACE GASES IN THE STRATOSPHERE.EHHALT DH; HEIDT LE; LUEB RH et al.1975; PURE APPL. GEOPHYS.; SWITZ.; DA. 1975; VOL. 113; PP. 389-402; BIBL. 19 REF.Article

ON THE TEMPORAL VARIANCE OF STRATOSPHERIC TRACE GAS CONCENTRATIONSEHHALT DH; ROETH EP; SCHMIDT U et al.1983; BERICHTE DER KERNFORSCHUNGSANLAGE JUELICH; ISSN 0366-0885; DEU; DA. 1983; NO 1836; 44 P.; BIBL. 2 P.Serial Issue

THE VERTICAL DISTRIBUTION OF CFM AND RELATED SPECIES IN THE STRATOSPHERE.VOLZ A; EHHALT DH; COSATTO H et al.1978; PURE APPL. GEOPHYS.; SWITZ.; DA. 1978; NO 2-3; PP. 545-553; BIBL. 1 P.Article

CARBON ISOTOPE FRACTIONATION DURING THE PRECIPITATION OF CALCIUM CARBONATE.EMRICH K; EHHALT DH; VOGEL JC et al.1970; EARTH PLANET. SCI. LETTERS; NLD; 1970(6), VOL. 8, NUM. 0005, P. 363 A 371Miscellaneous

VERTICAL PROFILES OF CH₄, H₂, CO, N₂O AND CO₂ IN THE STRATOSPHERE.EHHALT DH; HEIDT LE; LUEB RH et al.1974; IN: 3RD CONF. CLIM. IMPACT ASSESS. PROGRAM PROC.; CAMBRIDGE, MASS.; 1974; WASHINGTON; U.S. GOV. PRINT. OFF.; DA. 1974; PP. 153-160; BIBL. 10 REF.Conference Paper

THE PROBABILITY DISTRIBUTION OF THE PREDICTED CFM-INDUCED OZONE DEPLETIONEHHALT DH; CHANG JS; BUTLER DM et al.1979; J. GEOPHYS. RES.; USA; DA. 1979; VOL. 84; NO C12; PP. 7889-7894; BIBL. 9 REF.Article

DETERMINATION OF C₂-C₅ HYDROCARBONS IN THE ATMOSPHERE AT LOW PARTS PER 10^O TO HIGH PARTS PER 10¹² LEVELSRUDOLPH J; EHHALT DH; KHEDIM A et al.1981; J. CHROMATOGR.; ISSN 0021-9673; NLD; DA. 1981; VOL. 217; PP. 301-310; BIBL. 22 REF.Conference Paper

OH RADICALS VIA ATMOSPHERIC ¹⁴COVOLZ A; TONNISSEN A; EHHALT DH et al.1980; RADIOCARBON; ISSN 0033-8222; USA; DA. 1980; VOL. 22; NO 2; PP. 372-378; BIBL. 12 REF.Article

THE ISOTOPIC FRACTIONATION DURING THE OXIDATION OF CARBON MONOXIDE BY HYDROXYL-RADICALS AND ITS IMPLICATION FOR THE ATMOSPHERIC CO-CYCLE = FRACTIONNEMENT ISOTOPIQUE DURANT L'OXYDATION DU MONOXYDE DE CARBONE PAR DES RADICAUX HYDROXYLE ET IMPLICATION POUR LE CYCLE ATMOSPHERIQUE DE COSMIT HGJ; VOLZ A; EHHALT DH et al.1982; ANAL. CHEM. SYMP. SER.; ISSN 0167-6350; NLD; DA. 1982; VOL. 11; PP. 147-152; BIBL. 7 REF.; ILL.Conference Paper

DETERMINATION OF FORMALDEHYDE IN CLEAN AIRLOWE DC; SCHMIDT U; EHHALT DH et al.1981; ENVIRON. SCI. TECHNOL.; ISSN 0013-936X; USA; DA. 1981; VOL. 15; NO 7; PP. 819-823; BIBL. 15 REF.Article

MESSUNG VON ATMOSPHAERISCHEM ¹⁴CO: EINE METHODE ZUR BESTIMMUNG DER TROPOSPHAERISCHEN OH RADIKALKONZENTRATION = MESURE DU ¹⁴CO ATMOSPHERIQUE: METHODE DE MESURE DE LA CONCENTRATION DU RADICAL OH DANS LA TROPOSPHEREVOLZ A; EHHALT DH; DERWENT RG et al.1979; BER. KERNFORSCH.-AULAGE JUELICH; DEU; DA. 1979; NO 1604; 125 P.; ABS. ENG; BIBL. 8 P.Serial Issue