Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
Comecon [ˈkɔmɪkɔn] n abbr ( = Council for Mutual Economic Aid) ≈ СЭВ (= Сове́т Экономи́ческой Взаимопо́мощи)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: