Madjarov, N., and L.S. Mihaylova. A Multiple-Model Adaptive Kalman Filter Algorithm for Continuous Systems In Comptes rendus de l'Academie Bulgare des Sciences. Vol. 51. Sofia, Bulgaria, 1999.

Jilkov, V.P., L.S. Mihaylova, and X. Rong-Li. An Alternative IMM Filter for Benchmark Tracking Problem In 1st Intern. Conf. on Multisource-Multisensor Inform. Fusion-FUSION' 98 . Vol. 2. Las Vegas, Nevada, 1998.