@inproceedings{Kalinin:20210k, author = "Kalinin, Mikhail and Gvozdevsky, Boris and Krainev, Mikhail and Aslam, O.P.M. and Ngobeni, Donald and Potgieter, Marius", title = "{On the transition from 3D to 2D transport equations for a study of long-term cosmic-ray intensity variations in the heliosphere}", doi = "10.22323/1.395.1323", booktitle = "Proceedings of 37th International Cosmic Ray Conference {\textemdash} PoS(ICRC2021)", year = 2021, volume = "395", pages = "1323" }