00593nam#a2200181#i#450# EN\RIOR\book\4031 20240502124822.4 20230418d2023####ek#y0engy0150####ca RU SYNCHRONIZATION IN TELECOMMUNICATION SYSTEMS Textbook Moscow Publishing Center RIOR 2023 160 с. Textbook local Электросвязь. Техника электросвязи. 621.39 Oparin Evgeniy Valer'evich Kanaev Andrey Konstantinovich Saharova Mariya Aleksandrovna riorpub.com