Matthew J. Sottile Craig Edward Rasmussen Richard L. Graham Co-Array Collectives: Refined Semantics for Co-Array Fortran. 945-952 2006 conf/iccS/2006-2 International Conference on Computational Science (2) http://dx.doi.org/10.1007/11758525_125 db/conf/iccS/iccS2006-2.html#SottileRG06