\input zb-basic \input zb-ioport \iteman{io-port 70925747} \itemau{Williams, James B.; Weber-Jahnke, Jens H.} \itemti{The american law institute's principles on software contracts and their ramifications for software engineering research: NIER track} \itemso{ICSE, 972-975 (2011).} \itemcc{} \itemut{} \itemli{doi:10.1145/1985793.1985963} \end