00300nam a2200121Ia 4500082002000000100001800020245005800038260002500096300000900121490003800130500000500168700000500173  a515.35bC725.PD  aColton, D. L.  aPartial differential equation in the complex domainb  aLondonbPitmanc1976  a89p.  aResearch notes in Mathematicsv 4  a  a