On the approximation of an integral by a sum of random variables. Einmahl, John H.J.; Van Zuijlen, Martien C.A. — 1998 Journal of Applied Mathematics and Stochastic Analysis
Maximum likelihood estimator of the volatility of forward rates driven by geometric spatial AR sheet. Gáll, József; Pap, Gyula; Van Zuijlen, Martien C.A. — 2004 Journal of Applied Mathematics