Mv. Dorogov et al., SYNTHESIS OF MULTINUCLEAR DIAMINOPHENOXY COMPOUNDS BASED ON META-DINITROBENZENE AND THEIR APPLICATION AS MONOMERS FOR THERMOPLASTIC POLYIMIDES, Izvestia vyssih ucebnyh zavedenij. Himia i himiceskaa tehnologia, 38(4-5), 1995, pp. 35-40