00337nam a2200121Ia 4500020001800000082001800018100001800036245005900054260002800113300000900141650003500150700003000185  a9780415272674  a515.353 POL/H  aPolyanin, A D 0aHandbook of First Order Partial Differential Equations  bCrc PressaLondonc2002  a500p  aPartial Differential Equations  aZaitsev,V.F ; Moussiaux A