TY JOUR TI THE VIBRATING SIEVE WORKING PROCESS RESEARCH IN WAX BEE-BREAD MIX SIFTING KW bee-bread KW bee-bread honeycombs KW bee-bread extraction KW sieve KW vibration JO Bulletin of KSAU AU Byshov, N.V. AU Kashirin, D.E. PY 2013 IS PB Krasnoyarsk State Agrarian University