Factorization, basic notions and applications. - Doncho S. Donchev (Math. Methods Oper. Res., 1995)

An example of optimal switching between a wiener process and a deterministic motion with a non-zero switching cost. - Doncho S. Donchev (Math. Methods Oper. Res., 1995)

Average optimality in a Poissonian bandit with switching arms. - Doncho S. Donchev; Alexander A. Yushkevich (Math. Methods Oper. Res., 1997)

On the two-armed bandit problem with non-observed Poissonian switching of arms. - Doncho S. Donchev (Math. Methods Oper. Res., 1998)

Impact of False Positives and False Negatives on Security Risks in Transactions Under Threat. - Doncho S. Donchev; Vassil T. Vassilev; Demir Tonchev (TrustBus, 2021)