https://vital.lib.tsu.ru/ vital/access/manager/Index en-us 5 Multicomponent synthesis of unsymmetrical derivatives of 4-methyl-substituted 5-nitropyridines https://vital.lib.tsu.ru/ vital/access/manager/Repository/koha:001133165 Fri 11 Jul 2025 19:25:01 KRAT ]]>