Distributional Boundary Values of Functions Analytic in Tubular Radial Domains Richard Carmichael Indiana University Mathematics Journal 1971 text pdf 10.1512/iumj.1971.20.20066 10.1512/iumj.1971.20.20066 en Indiana Univ. Math. J. 20 (1971) 843 - 853 state-of-the-art mathematics http://iumj.org/access/