000 00311nam a2200121Ia 4500
001 21747
008 170722s9999 xx 000 0 und d
100 _aPonten, J.
245 _aSpontaneous and virus induced transformation in cell culture. /
260 _c1971.
490 _aVirology Monographs
942 _cGEN
999 _c85941
_d85941