00271nam a2200109 a 450000500170000002000150001708200200003210000220005224500380007426000320011230000170014420251203091513.0  a0691085285  a530.13,bD, fol  aFolland, Gerald B  aHarmonoc analaysis in phase space  aNew JerseybPrincetonc1989  ax,278p, 22cm