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STAND DER KOHLEHYDRIERUNG AUSSERHALB VON EUROPA = STATUS OF COAL HYDROGENATION OUTSIDE EUROPE = ETAT DE L'HYDROGENATION DU CHARBON EN DEHORS D'EUROPEWOLOWSKI E; FUNK O.1980; ERDOEL KOHLE, ERDGAS, PETROCHEM.; ISSN 0014-0058; DEU; DA. 1980; VOL. 33; NO 7; PP. 321-326; ABS. ENGArticle

NEUE TECHNOLOGIEN ZUR STEINKOHLENVEREDLUNG = NEW TECHNOLOGIES FOR COAL PROCESSINGLANGHOFF J; DUERRFELD R; WOLOWSKI E et al.1981; ERDOEL KOHLE, ERDGAS, PETROCHEM.; DEU; DA. 1981-09; VOL. 34; NO 9; PP. 379-386; BIBL. 15 REF.Article

NEUE TECHNOLOGIEN ZUR STEINKOHLENVEREDLUNG = NEW TECHNOLOGIES FOR COAL BENEFICIATION = NOUVELLES TECHNOLOGIES EN MATIERE DE VALORISATION DU CHARBONLANGHOFF J; DUERRFELD R; WOLOWSKI E et al.1981; ERDOEL KOHLE ERDGAS PETROCHEM.; ISSN 0014-0058; DEU; DA. 1981; VOL. 34; NO 9; PP. 379-386; ABS. ENG; BIBL. 15 REF.Article

CURRENT GERMAN DEVELOPMENTS IN COAL LIQUEFACTION TECHNOLOGYKOLLING G; ROMEY I; WOLOWSKI E et al.1979; ACHIEVEMENTS IN PERSPECTIVE. ENERGY TECHNOLOGY 6. ENERGY TECHNOLOGY CONFERENCE. 6/1979/WASHINGTON DC; USA; WASHINGTON: GOVERNMENT INSTITUTES; DA. 1979; PP. 657-663; BIBL. 6 REF.Conference Paper

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STATUS OF GERMAN TECHNOLOGY ON COAL HYDROGENATION DEVELOPMENT BY RUHRKOHLE AG AND VEBA OEL AGLANGHOFF J; WOLOWSKI E; ESCHER G et al.1980; CAN. J. CHEM. ENG.; ISSN 0008-4034; CAN; DA. 1980; VOL. 58; NO 6; PP. 693-698; BIBL. 9 REF.Conference Paper

DIE NICHTKATALYTISCHE HYDRIERUNG VON STEINKOHLEN. = NON CATALYTIC HYDROGENATION OF COAL = L'HYDROGENATION NON CATALYTIQUE DU CHARBONWIEN H; SCHLUPP KF; LANGHOFF J et al.1977; ERDOEL KOHLE ERDGAS PETROCHEM.; DTSCH.; DA. 1977; VOL. 30; NO 1; PP. 39Article

The coal oil plant at BottropLANGHOFF, J; WOLOWSKI, E; ESCHER, G et al.International conference on coal research. 6. 1983, pp 471-487Conference Paper

First experience and results gained during operation of the 200 T/D coal oil plant in BottropLANGHOFF, J; WOLOWSKI, E; TAMM, H. F et al.COGLAC. Annual international conference on coal gasification, liquefaction and conversion to electricity. 9. sd, pp 398-415Conference Paper