Citation: K. Kalb et Ja. Elix, THE CHEMISTRY OF SOME SPECIES OF BUELLIA SENSU-LATO (LECANORALES, LICHENIZED ASCOMYCOTINA), Mycotaxon, 68, 1998, pp. 465-482
Citation: Pp. Brinch et al., UPGRADING TO NUTRIENT REMOVAL BY MEANS OF INTERNAL CARBON FROM SLUDGEHYDROLYSIS, Water science and technology, 29(12), 1994, pp. 31-40
Citation: D. Sturzbecher et K. Kalb, COMPARING ANALYSIS OF SOCIALIZATION VALUES IN FORMER GDR AND WEST-GERMANY, PSYCHOLOGIE IN ERZIEHUNG UND UNTERRICHT, 40(2), 1993, pp. 143-147