00286nam a2200109 a 450000500170000002000160001708200170003310000210005024500350007126000440010630000260015020251203091511.0  a08284003252  a515.353bGAR  aGarabedian, P.R.  aPartial Differential Equations  aNew YorkbChelsea Publishing Co.,c1986  axii, 672p., 24 cm. HB