Decomposition of Banach Spaces Joram Lindenstrauss Indiana University Mathematics Journal 1971 text pdf 10.1512/iumj.1971.20.20079 10.1512/iumj.1971.20.20079 en Indiana Univ. Math. J. 20 (1971) 917 - 919 state-of-the-art mathematics http://iumj.org/access/