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[3]
BECUS GA, 1972, 87 STAT U NEW YORK E
[4]
Green C.D., 1969, INTEGRAL EQUATION ME
[5]
HELMS LL, 1969, INTRO POTENTIAL THEO
[6]
Keller J., 1964, STOCHASTIC EQUATIONS, P145
[7]
Stakgold I., 1967, BOUNDARY VALUE PROBL, VII
[8]
[No title captured]
[9]
[No title captured]