1. V. P. Maslov, Asymptotic Methods for Solving Pseudodifferential Equations [in Russian], Nauka, Moscow (1987).
2. V. P. Maslov, Méthodes Opératorielles, Mir, Moscow (1987).
3. V. P. Maslov and V. N. Kolokoltsov, Idempotent Analysis and Its Application in Optimal Control [in Russian], Nauka, Moscow (1994).
4. V. N. Kolokoltsov and V. P. Maslov, Idempotent Analysis and Its Applications, Kluwer, Dordrecht (1997).
5. Adv. Sov. Math.,1992