00285nam a2200097Ia 4500008004100000082001800041100001900059245005700078260004200135300001000177210430s9999    xx            000 0 und d  a572.65 B297 B  aJohn M. Walker  aBasic Protein and Peptide Protocols cJohn M. Walker  aUKbUniversity of Hertfordshirec1994  a490 p