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022 _a0092-8240
040 _aRuMoBEN
_brus
_ercr
041 0 _aeng
245 1 0 _aVol. 22 No. 4
260 _c1960
773 1 8 _7nnas
_gVol. 22 No. 4
_tBulletin of Mathematical Biology. 1960
_w000015466
_x0092-8240
942 _cIS
999 _c15488
_d15488