@book
{TN_libero_mab2,
author = {
Bălgarska akademija na naukite
Sendov, Blagovest
},
title = {
Academicians and corresponding members 1869 - 1984
},
publisher = {Publ. House of the Bulgarian Academy of Sciences},
year = {1989},
address = {
Sofia
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}