Help me identify the artist
 

Portrait of Shevchenko , 48 * 40 cm , paper , pencil, lithography , 1964 For unknown reasons, someone poluster signature , and pee graphic pencil , which can not be read. The Internet has found another portrait of the same artist (paper , charcoal , bleached - the description ), but the signature did not give me reading . Help me identify the artist . Thanks in advance .

Yakovenko, Elena painter , graphic artist and teacher . Rod . July 25, 1914 in Merefa Xapkovskoy region . Graduated HGHI ( 1938-46 ) , where she studied with A. COQUELLES , S. Prokhorova . Member of the CW CFS s1946 . Participant of republican and international and foreign exhibitions since 1945 . Solo Exhibitions : Xapkov - 1950 , 1982 , 1993 , Sumi - 1962 , Kiev - 1969.1984 .
Taught at the Kharkiv Art College
One of her works of " Heroes of Socialist Labor " 1951god .
Sign " Jacob .. " or " EYakov ... "

Problem solved.
Many thanks to Tandem.