00301nam a22000977a 4500008004100000020001800041100002000059245006900079260003900148300001600187250515b        |||||||| |||| 00| 0 eng d  a9781786346681  aBender, Carl M.  aPT symmetry in quantum and classical physics/cby Carl M. Bender  aNew JerseybWorld Scientificc2019  axxii, 446p.