00387nam a22001097a 450000500170000000800410001705000220005810000400008024501070012026000330022730000170026020260429114348.0260429b |||||||| |||| 00| 0 eng d aQC 20.82.B5b1980 aBitsadze V. A and Kalinichenko F. D aA collection of problems on the equations of mathematical physicscA. V Bitsadze and D. F Kalinichenko aMoscowbMir Publishersc1980 ap. 334.bHbk