TY  - BOOK
AU  - WOLFRAM,Stephen
TI  - Mathematica: a system for doing mathematics by computer 
SN  - 0201515075
PY  - 1991///
CY  - Redwood City
PB  - Addison-Wesley
UR  - http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=29860
ER  -