On a characterization of an abelian variety in the classification theory of algebraic varieties Yujiro Kawamata, Eckart Viehweg (1980) Compositio Mathematica
On the Jacobian criterion of formal smoothness. Antonio G. Rodicio (1989) Publicacions Matemàtiques We give a short proof of the Jacobian criterion of formal smoothness using the Lichtenbaum-Schlessinger cotangent complex.