M. Vardi
2 references under this name, matched as it is written. Somebody else may write under it too, and the same person may appear here spelled another way.
First-order logic with two variables and unary temporal logics
K. Etessami and others (1997) · LICS’97
On the Decision Problem for Two-Variable First-Order Logic
E. Grädel and others (1997) · Cambridge University Press (CUP)