@Article{ BOJKOV_HRISTOVA:11-15,

author = { NIKOLAY BOJKOV VASSILEV and MARIA HRISTOVA VASSILEVA } ,

title = { BIOSYNTHESIS OF CITRIC ACID BY ASPERGILLUS NIGER },

journal = { BIOTECHNOLOGY AND BIOTECHNOLOGY EQUIPMENT },

year = { 1986 },

pages = { 11-15 },

}