00318nam a2200121 a 4500020001500000082001400015100001200029245003800041260003000079300001100109650001400120650006200134  a0890661023  a542.8 SPA1 aSpartan13aSpartan Version 5.0: User's Guide  aU.S.AbWavefunctionc1993  a250 p.  achemistry  amolecularamolecular modelingamolecular modeling program