Journal Article
Forecasting U.S. GNP at monthly intervals with an estimated bivariate time series model
Zadrozny, Peter A. (1990-11)
Economic Review , Issue Nov , Pages 2-15

Working Paper
Analytic derivatives of the matrix exponential for estimation of continuous-time ARMA models
Zadrozny, Peter A. (1989)
FRB Atlanta Working Paper , Paper 89-5