Biholomorphic Equivalence in a Class of Graph Domains David Johnson Indiana University Mathematics Journal 1980 text pdf 10.1512/iumj.1980.29.29025 10.1512/iumj.1980.29.29025 en Indiana Univ. Math. J. 29 (1980) 341 - 348 state-of-the-art mathematics http://iumj.org/access/