Robi Dutta Maurice Marks Craig Morrissey Ravi Rao Lee Sapiro A flexible hierarchical 3-D module assembler. 124-128 1990 EURO-DAC http://doi.acm.org/10.1145/949970.949999 conf/eurodac/1990 db/conf/eurodac/euro-dac1990.html#DuttaMMRS90