00548naa#a2200169#i#450# EN\\bibl\12817 20260313082447.5 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 Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2016 8 с. Journal article local Rybak Alexey Leonidovich ras.editorum.ru