Chunyan Wang M. Omair Ahmad M. N. S. Swamy Design of a transistor-mismatch-insensitive switched-current memory cell. 105-108 1999 conf/iscas/1999 ISCAS (2) http://doi.ieeecomputersociety.org/10.1109/ISCAS.1999.780630 db/conf/iscas/iscas1999-2.html#WangAS99