00515nam a2200181Ia 4500082001700000100002200017245003800039260004200077300002900119500002900148500000500177690000600182700000500188952009900193964001700292921000900309999001500318  a512bH636.TS  aHiggins, Peter M.  aTechniques of semigroups theoryb  aOxfordbOxford University Pressc1992  ax, 258p. Index. Glossary  a"Oxford science publns."  a  a   a  00104070aISIbISId1998-09-09l0o512 H636.TSpDP22151r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a9563  c9563d9563