Matlab-implementation of MM3A1 - algorithm for optimal singular adaptive observation of MISO linear discrete systems. - Lyubomir Sotirov; Nikola N. Nikolov; Stela Sotirova (CompSysTech, 2000)

Matlab - implementation of M2A5-algorithm for optimal singular adaptive observation of SISO linear discrete systems. - Lyubomir Sotirov; Nikola N. Nikolov; Stela Sotirova (CompSysTech, 2000)

Computer-mathematical modeling of one class investment processes, based on optimal singular adaptive M3A1N computer observer: part 1. - Stela Sotirova; Lyubomir Sotirov (CompSysTech, 2007)

Computer-mathematical modeling of one class investment processes, based on optimal singular adaptive M3A1N computer observer: part 2. - Stela Sotirova; Lyubomir Sotirov (CompSysTech, 2007)

About singularity of two approaches to solving problems of portfolio selection under risk. - Stela Sotirova; Lyubomir Sotirov (CompSysTech, 2009)