Alimgazinova, N., Naurzbaeva, A., Manapbaeva, A., Ikramova, S., Kurmangazina, M., Kenzhegaraeva, A. і Adilzhan, K. 2017. Application of the method of recurrent diagrams to the analysis of signs of x-ray sun radiation. ҚазҰУ Хабаршысы. Физика сериясы. 63, 4 (Груд 2017), 30–36.