5

N-alkylation of ethylenediamine with alcohols catalyzed by CuO-NiO/γ-Al2O3

Year:
2012
Language:
english
File:
PDF, 138 KB
english, 2012
14

Free vibration of a class of Hill's equation having a small parameter

Year:
1990
Language:
english
File:
PDF, 293 KB
english, 1990