00678naa#a2200205#i#450# EN\\bibl\52859 20240901212848.7 2587-9936 20190625b2019####ek#y0engy0150####ca RUS RU Synthesis of compact waveguide filters with an elliptic characteristic Journal article Sevastopol Federal State Educational Institution of Higher Education Sevastopol State University 2019 8 с. Journal article local Волноводы. 621.372.8 RUS Krutiev Sergey V. Zemlyakov Vyacheslav V. Kleshenkov Anatoly B rusjbpc.ru