00535naa#a2200169#i#450# EN\INFRA-M\bibl\12817 20241125141220.1 2500-0535 20160810b2016####ek#y0engy0150####ca ENG RU Some peculiarities in longitude distribution of sunspot groups over last four eleven-year solar cycles Journal article Moscow INFRA-M Academic Publishing LLC. 2016 8 с. Journal article local Rybak Alexey Leonidovich zh-szf.ru