// <I>IRMES' 95<D>: Procееdings of the Expert Conference on Mechanical Systems and Elements. Research and Development, Nis, Yugoslavia, 19-21 April 1995: Vol.2.- Nis, Yugoslavia, 1995, p. 16-21.
(1995)
D. Zafirov; S. Georgiev; T. Todorov;
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// <I>NTADES 2022<D> 9th International Conference on New Trends of the Applications of Differential Equations in Sciences, 2023, p. 269-279, DOI: 10.1007/978-3-031-21484-4_24