KNYGA William Viney Twinkind, The singular significance of twins
KNYGA Roberto Mangabeira Unger Singular Universe and the Reality of Time
Robin Williams: A Singular Portrait, 1986-2002, Robin Williams: A Singular Portrait, 1986-2002
KNYGA Grigory I. Shishkin, G. I. Shishkin Difference Methods for Singular Perturbation Problems


