Found:

proper government

SYNTAX: type of government. A category is properly governed if it is governed by a proper governor. Categories that are usually considered proper governors for a category alpha, are categories that are coindexed with alpha (see antecedent government) and heads (in some models theta-assigning heads (theta government), in others lexical heads (head government)). Proper government is the key notion in the formulation of the Empty Category Principle.

LIT.	Aoun, J., N. Hornstein, D. Lightfoot & A. Weinberg (1987) Aoun, Y. & D. Sportiche (1983) Chomsky, N. (1986b) Chomsky, N. (1981) Lasnik, H. and M. Saito (1984) Rizzi, L. (1990)