Desulfovibrio simplex Zellner et al. 1990 Zellner G. Messner P. Kneifel H. Winter J. Desulfovibrio simplex spec. nov., a new sulfate-reducing bacterium from a sour whey digester 1989 152 329 334 Archives of Microbiology Arch Microbiol 0302-8933 1432-072X 10.1007/BF00425169