@book
{TN_libero_mab2,
author = {
Kallio, Heikki
},
title = {
Gravitational collapse in the projective theory of relativity
},
publisher = {Suomalainen Tiedeakatemia},
isbn = {9514101901},
year = {1974},
abstract = {Literaturverz. S. 9},
booktitle = {Annales Academiae Scientiarum Fennicae ; Series A. 6, Physica ; 414},
address = {
Helsinki
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}