00311nam a2200133Ia 45000030006000000080041000060400015000471000018000622450041000802500011001212600016001325460012001480050017001600STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKothari, C.R.  aIntroduction to operational research  aSecond  bVikasc1983  aEnglish20220125170051.0