ELEKTRONISCHE DIGITALANZEIGEN FUER DEN EINSATZ ALS UHRENDISPLAY = L'AFFICHAGE DIGITAL ELECTRONIQUE DANS LES SYSTEMES D'INDICATION HORAIREWITTWER V.1978; JAHRB. DTSCH. GES. CHRONOM.; ISSN 0373-7616; DEU; DA. 1978; VOL. 29; PP. 81-85; ABS. FREArticle

L'AFFICHAGE DIGITAL ELECTRONIQUE DANS LES SYSTEMES D'INDICATION HORAIREWITTWER V.1978; ANN. FR. CHRONOM. MICROTECH.; FRA; DA. 1978; VOL. 32; NO 2; PP. 155-156Conference Paper

Transparent insulation materials and their application in active and passive systemsWITTWER, V.International journal of solar energy. 1992, Vol 11, Num 1-2, pp 117-134, issn 0142-5919Article

Translucent insulation for passive solar energy utilization in buildingsWITTWER, V.Solar & wind technology. 1989, Vol 6, Num 4, pp 419-426, issn 0741-983XArticle

Transparent insulation materials new perspectives for solar energy applicationsWITTWER, V.International north sun conference. 3. 1989, pp 503-511Conference Paper

FLUORESCENT PLANAR COLLECTOR-CONCENTRATORS: A REVIEWGOETZBERGER A; WITTWER V.1981; SOL. CELLS; ISSN 0379-6787; CHE; DA. 1981; VOL. 4; NO 1; PP. 3-23; BIBL. 19 REF.Article

INFRARED-STIMULATED LUMINESCENCE AND CONDUCTIVITY IN ZNO(CU).WITTWER V; LUCHNER K.1974; PHYS. STATUS SOLIDI, A; ALLEM.; DA. 1974; VOL. 25; NO 2; PP. 559-565; ABS. ALLEM.; BIBL. 17 REF.Article

ESR AND OPTICAL ABSORPTION OF RHENIUM IN MOO₃.GAZZINELLI R; SCHIRMER OF; WITTWER V et al.1977; J. PHYS. C; G.B.; DA. 1977; VOL. 10; NO 6; PP. 889-896; BIBL. 10 REF.Article

DISORDER DEPENDENCE AND OPTICAL DETECTION OF THE ANDERSON TRANSITION IN AMORPHOUS H_XWO₃ BRONZES.WITTWER V; SCHIRMER OF; SCHLOTTER P et al.1978; SOLID STATE COMMUNIC.; GBR; DA. 1978; VOL. 25; NO 12; PP. 977-980; BIBL. 15 REF.Article

DETERMINATION OF THE TILT ANGLES AT SURFACES OF SUBSTRATES IN LIQUID CRYSTAL CELLS.BAUR G; WITTWER V; BERREMAN DW et al.1976; PHYS. LETTERS, A; NETHERL.; DA. 1976; VOL. 56; NO 2; PP. 142-144; BIBL. 3 REF.Article

FLUORESCENT PLANAR CONCENTRATOR (FPC): MONTE-CARLO COMPUTER MODEL LIMIT EFFICIENCY AND LATEST EXPERIMENTAL RESULTSHEIDLER K; GOETZBERGER A; WITTWER V et al.1982; PHOTOVOLTAIC SOLAR ENERGY CONFERENCE. 4/1982/STRESA; NLD/USA/GBR; DORDRECHT; BOSTON; LONDON: D. REIDEL PUBLISHING COMPANY; DA. 1982; PP. 682-686; BIBL. 11 REF.Conference Paper

DEPENDENCE OF WO₃ ELECTROCHROMIC ABSORPTION ON CRYSTALLINITY.SCHIRMER OF; WITTWER V; BAUR G et al.1977; J. ELECTROCHEM. SOC.; U.S.A.; DA. 1977; VOL. 124; NO 5; PP. 749-753; BIBL. 21 REF.Article

Transparent thermal insulation materials and systems: state of the art and potential for the future : Major challenges for fluids transport property research in the next centuryWITTWER, V; PLATZER, W.High Temperatures. High Pressures (Print). 2000, Vol 32, Num 2, pp 143-158, issn 0018-1544Conference Paper

Conversion of solar energy using fluorescent collectors: installation of a test collector to deliver several watts powerWILSON, H. R; WITTWER, V.Solar energy R & D in the European community. Series C. Photovoltaic power generation. 1983, Vol 3, pp 267-272Article

The convective heat transfer coefficients from absorber plate to water in integrated and plastic bag solar water heatersGE XIN-SHI; WITTWER, V.Renewable energy. 1991, Vol 1, Num 2, pp 299-302, issn 0960-1481Article

INVESTIGATION OF THE FAST DECAY OF THE GREEN FLUORESCENCE IN ZNO (CU) CRYSTALS.KAMMERMAYER R; WITTWER V; EISENREICH N et al.1976; SOLID STATE COMMUNIC.; G.B.; DA. 1976; VOL. 19; NO 5; PP. 461-464; BIBL. 8 REF.Article

Materials for solar energy conversion : An overviewGRANQVIST, C. G; WITTWER, V.Solar energy materials and solar cells. 1998, Vol 54, Num 1-4, pp 39-48, issn 0927-0248Article

GRUNDLAGEN DER SOLARENERGIEUMWANDLUNG AUF DER BASIS VON FLUORESZENZKOLLEKTOREN = FUNDAMENTALS OF SOLAR ENERGY CONVERSION BASED ON FLUORESCENCE COLLECTORS = PRINCIPES DE LA CONVERSION DE L'ENERGIE SOLAIRE BASEE SUR LES COLLECTEURS A FLUORESCENCEGOETZBERGER A; BAUR G; HEIDLER K et al.1980; SONNENENERGIE. SEMINAR/1980/HAMBURG; DEU; DUESSELDORF: VEREIN DEUTSCHER INGENIEURE; DA. 1980; VOL. 2; PP. 1175-1184; ABS. ENG; BIBL. 8 REF.Conference Paper

FLUORESCENT PLANAR CONCENTRATORS. PERFORMANCE AND EXPERIMENTAL RESULTSGOETZBERGER A; HEIDLER K; WITTWER V et al.1979; PHOTOVOLTAIC SOLAR ENERGY CONFERENCE. 2/1979/BERLIN; NLD/USA/GBR; DORDRECHT: D. REIDEL/BOSTON: D. REIDEL/LONDON: D. REIDEL; DA. 1979; PP. 515-523; BIBL. 9 REF.;_EUR-6376Conference Paper

The role of water in gasochromic WO₃ filmsGEORG, A; GRAF, W; NEUMANN, R et al.Thin solid films. 2001, Vol 384, Num 2, pp 269-275, issn 0040-6090Article

Comparison of electrical conductivity and optical properties of substoichiometrically and electrochemically coloured WO_x films of different crystallinityGEORG, A; GRAF, W; WITTWER, V et al.Solar energy materials and solar cells. 1998, Vol 51, Num 3-4, pp 353-370, issn 0927-0248Article

Directionally selective dielectric structures for solar radiation controlWIRTH, H; GOMBERT, A; WITTWER, V et al.Solar energy. 1998, Vol 63, Num 4, pp 269-275, issn 0038-092XArticle

Transparent insulation system for passive solar energy utilization in buildingsGOETZBERGER, A; SCHMID, J; WITTWER, V et al.International journal of solar energy. 1984, Vol 2, Num 4, pp 289-308, issn 0142-5919Article

Mechanism of the gasochromic coloration of porous WO₃ filmsGEORG, A; GRAF, W; NEUMANN, R et al.Solid state ionics. 2000, Vol 127, Num 3-4, pp 319-328, issn 0167-2738Article

Some thermal and optical properties of a new transparent silica xerogel material with low densityEINARSRUD, M.-A; HÆREID, S; WITTWER, V et al.Solar energy materials and solar cells. 1993, Vol 31, Num 3, pp 341-347, issn 0927-0248Conference Paper