00261nam a2200109Ia 4500008004100000041001200041100001900053245005400072260000600126650000600132700001300138221030s9999    xx            000 0 und d  aEnglish  aK. K. Aggarwal 0aSoftware Engineeringcby K. K. Aggarwal, Y. Singh  c0  aB  aY. Singh