Mykola Portenko
Addresses
Office:
Institute
of
Mathematics
of the
Ukrainian
National
Academy
of Sciences
3, Tereshchenkivska st. 01601 Kyiv
UKRAINE
Tel.: +(380-44)2246153 Fax.: +(380-44)2252010
Home:
6, Rusanivska st., apt.155
02154 Kyiv
UKRAINE
Tel.: +(380-44)55521033