Numerical Methods and Applications 9th International Conference, NMA 2018, Borovets, Bulgaria, August 20-24, 2018, Revised Selected Papers Nikolov, Geno Heftet / 2019 / Engelsk
Numerical Methods and Applications 6th International Conference, NMA 2006, Borovets, Bulgaria, August 20-24, 2006, Revised Papers Boyanov, Todor Heftet / 2007 / Engelsk
Numerical Methods and Applications 10th International Conference, NMA 2022, Borovets, Bulgaria, August 22–26, 2022, Proceedings Georgiev, Ivan Heftet / 2023 / Engelsk