Semerdjiev, Emil, Ludmila Mihaylova, and X. Rong-Li. An Adaptive IMM Filter for Aircraft Tracking In 2nd Intern. Conf. on Multisource-Multisensor Information Fusion (Fusion?99). Sunnyvale, California, 1999.

Mihaylova, Ludmila, Emil Semerdjiev, and X. Rong-Li. Detection and Localization of Faults in System Dynamics by IMM Estimator In 2nd Intern. Conf. on Multisource-Multisensor Information Fusion (Fusion? 99). Sunnyvale, California, 1999.

"An IMMPDAF Solution to Benchmark Problem for Tracking in Clutter and Stand-off Jammer." Information & Security: An International Journal  2 (1999): 55-68.

"An Interacting Multiple Model Algorithm for Stochastic Systems Control." Information & Security: An International Journal 2 (1999): 102-112.

"Interacting Multiple Model Algorithms for Manoeuvring Ship Tracking Based On New Ship Models." Information & Security: An International Journal 2 (1999): 122-137.

Semerdjiev, Emil, and Ludmila Mihaylova. IMM Algorithm for Manoevring Ship Tracking In Intern. Conf. on Multisource-Multisensor Inf. Fusion - FUSION'98 . Las Vegas, Nevada, 1998.

Semerdjiev, Emil, Tzvetan Semerdjiev, and Ludmila Mihaylova. Maneuvering Ship Model Identification and IMM Tracking Algorithm Design  In First International Conference on Multisource-Multisensor Information Fusion?98. Las Vegas, Nevada, 1998.