00383nam a2200157Ia 4500008004100000041001200041082001000053082001100063100001900074100001100093245006000104260001100164260001900175260000900194650002200203150909s9999    xx            000 0 und d  aEnglish  a574.8  bCOH/PR  aCohn Walde L    eEditor  aProgress in nucleic acid research and molecular biology  aLondon  bAcadamic Press  c1981  aMolecular Biology