Bilchev, S., Velikova, E. A Solution of a Problem of Paul Erdos and Related with It Transformation,
, 1997.
Bilchev, S., Velikova, E. .
A Solution of a Problem of Paul Erdos and Related with It Transformation.
: , 1997.
Bilchev, S., Velikova, E. (1997)
A Solution of a Problem of Paul Erdos and Related with It Transformation,
:
Bilchev, S., & Velikova, E.
(1997).
A Solution of a Problem of Paul Erdos and Related with It Transformation. // <I>Mathematics<D> and Informatics Quarterly (Singapore), 7, 1997, № 3, p. 120-126..