● Nielsen MB,Kjeldsen KU,Ingvorsen K (2011). Description of Citricoccus nitrophenolicus sp. nov., a para-nitrophenol degrading actinobacterium isolated from a wastewater treatment plant and emended description of the genus Citricoccus Altenburger et al. 2002. Antonie Van Leeuwenhoek99, 489-99.