INTERACTION BETWEEN COPPER(II) OXIDE AND AQUEOUS AMMONIA IN THE PRESENCE OF ETHYLENEDIAMINETETRAACETIC ACID СтатьяNevskaya E.Yu., Gorichev I.G., Safronov S.B., Zaitsev B.E., Kutepov A.M., Izotov A.D.Theoretical Foundations of Chemical Engineering. Том 35. 2001. С. 503-509