@article{Kleiman_2001 author = {A.S. Kleiman and A.I. Levenberg and G.S. Sidorenko and A.A. Katkov and T.A. Usenko}, title = {Rubidium Frequency and Time Standard: Development, Investigation and Application. Part 2}, journal = {Telecommunications and Radio Engineering}, issn = {0040-2508}, year = {2001}, volume = {55}, number = {5}, }