(NnEORGANI^ESKAQ HIMIQs - (NpETROW m(B.(Nm(B., (NmIHILEW l(B.(Na(B., (NkUKU[KIN `(B.(Nn(B.s ((NlENINGRADs (NlENINGRADSKOE OTDELENIEs, 1974)