Authors: Lewin, RA Mikenberg, IF Schwarze, MG

Citation: Ra. Lewin et al., On free annotated algebras, ANN PUR APP, 108(1-3), 2001, pp. 249-259

Authors: Marshall, MV Schwarze, MG

Citation: Mv. Marshall et Mg. Schwarze, Rank in set theory without foundation, ARCH MATH L, 38(6), 1999, pp. 387-393