00784naa#a2200205#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200007500102210006500177215001100242608002700253675017800280700003500458700002900493700004100522856001500563EN\\bibl\4590520260223205526.1##a2500-0535##a20220325b2022####ek#y0engy0150####ca0#aENG##aRU1#aIceland spar and birefringent filter (BF) developmenteJournal article1#aIrkutskcInstitute of Solar-Terrestrial Physics SB RASd2022##a15 с.##aJournal article2local##aИнструменты, приборы и методы астрономических наблюдений, измерений и анализа. 520aОптика. 535zENG#1aSkomorovskygValery Iosifovich#1aKushtalgGalina Ivanovna#1aTokareva (Lopteva)gLyubov Sergeevna4#anaukaru.ru