@inbook{Maddala1986,
author = {Maddala, G.S.},
title= {Disequilibrium, self-selection, and switching models},
year = {1986},
editor = {Griliches, Z.},
editor = {Intriligator, M.D.},
booktitle = {Handbook of Econometrics},
publisher = {Elsevier Science Publishers},
pages = {1634--1688},
series = {Vol. 3, Ch. 28},
}