1. Dorin Andrica and Cătălin Barbu, Proceeding of 13^{th} International Conference on Applied Mathematics and Computer Science, August 2010, Cluj Napoca.
2. Laurian Pişcoran and Cătălin Barbu, Proceeding of International Conference of Applied Mathematics, p.85, September 2010, Baia Mare.
3. Cătălin Barbu, Proceeding of Joint Fall 2010 Meeting of the Texas Sections of the American Physical Society, AAPT, Zone 13 of SPS and the National Society of Hispanic Physicists, University of Texas at San Antonio, USA, October 21-23, 2010.
4. Cătălin Barbu, Proceeding of Annual Meeting of the Four Corners Section of the American Physical Society, Weber State University, Ogden, UT, USA, October 15-16, 2010.
5. Laurian Pişcoran and Cătălin Barbu, Proceeding of International Conference of Applied Mathematics, September 2011, Baia Mare.
6. Cătălin Barbu, Proceeding of International Symposium “Educatia matematica in contextul european actual”, Brasov, 2011.
7. Cătălin Barbu and Nicuşor Minculete, Proceeding of „Gheorghe Vrânceanu” National Conference on Mathematics and Informatics with international participation, 26th-27th of May, 2011, Bacău, Romania.
8. Ion Pătraşcu and Cătălin Barbu, A Nagel analogue of the Steiner-Lehmus theorem, „Gheorghe Vrânceanu” National Conference on Mathematics and Informatics with international participation, 31 th of May, 2013, Bacău, Romania
9.P. Laurian, C. Barbu, Titeica curves in Minkowski spaces, 9-th International Conference of Applied Mathematics, September 2013, Baia Mare.