Taher Abualrub Ibrahim Sadek 0001 Marwan Abukhaled Optimal Control Systems by Time-Dependent Coefficients Using CAS Wavelets. 2009 2009 J. Appl. Math. https://doi.org/10.1155/2009/636271 https://www.wikidata.org/entity/Q58648643 db/journals/jam/jam2009.html#AbualrubSA09