00830naa#a2200217#i#450# EN\INFRA-M\bibl\45905 /en/manage/index 20241115172802.5 2500-0535 20220325b2022####ek#y0engy0150####ca ENG RU Iceland spar and birefringent filter (BF) development Journal article Moscow INFRA-M Academic Publishing LLC. 2022 15 с. Journal article local Инструменты, приборы и методы астрономических наблюдений, измерений и анализа. 520 Оптика. 535 ENG Skomorovsky Valery Iosifovich Kushtal Galina Ivanovna Tokareva (Lopteva) Lyubov Sergeevna test.editorum.ru /en/manage/index