Krasimir Ivanov
发表
I. Kolev,
Stephan Velchev,
Krasimir Ivanov,
2011
.
Krasimir P. Ivanov,
Emil Bournaski,
Krasimir Ivanov,
1996
.
Stefan Velchev,
Ivan Kolev,
Krasimir Ivanov,
2014
.