The Solution of a Class of Integral Equations G. Latta Indiana University Mathematics Journal 1956 text pdf 10.1512/iumj.1956.5.55031 10.1512/iumj.1956.5.55031 en Indiana Univ. Math. J. 5 (1956) 821 - 834 state-of-the-art mathematics http://iumj.org/access/