TY JOUR TI ASSESSMENT OF TOXICITYSOIL AROUND BY KRASNOYARSK BIOTESTING KW Paramecium caudatum KW Triticum aestivum KW ciliates KW toxicity KW bioassay JO Bulletin of KSAU AU Shadrin, I.A. AU Vasilyeva, T.V. PY 2015 IS PB Krasnoyarsk State Agrarian University