title: [Specificity of phenylalanine-tRNA-synthetase from Escherichia coli MRE-600 to fluorinated analogs of phenylalanine].
vernacular_title: Issledovanie spetsifichnosti fenilalanil-tRNK-sintetazy iz Escherichia coli MRE-600 k ftoriroannym analogam fenilalanina.