G. V. Grigor’ev

Physicochemical properties and structures of 4-azafluorenones and 2,3-benzo-4-azafluorenones

G. V. Sheban, N. S. Prostakov, V. G. Pleshakov, 1988 .

Mass-spectrometric study of nitro derivatives of 2(4)-azafluorenes and 2(4)-azafluorenones

N. S. Prostakov, P. I. Zakharov, V. G. Pleshakov, 1981 .