//-->
Econometric models of cyclical behavior
Hickman, Bert G., (1972)
The econometric approach to business-cycle analysis reconsidered
Alexander, Albert, (1984)
Econometric analysis of count data : with 20 tables
Winkelmann, Rainer, (2000)
The Econometric Approach to Business-Cycle Analysis Reconsidered
Alexander, Albert, (1982)
Ramsey, James B., (1984)