1. Vetlova IV (1981) Tekhnol Proizvod Prod Pchelovod Chem Abstr 4:215
2. Vaskov NA, Titov VF, Stobov NM (1981) Tekhnol Proizvod Prod Pchelovod 6:199
3. Koptev VS (1981) Tekhnol Proizvod Prod Pchelovod Chem Abstr 6:199
4. Kordonskij EI (1981) Tekhnol Proizvod Prod Pchelovod Chem Abstr 7:256
5. Likhotin AK (1981) Tekhnol Proizvod Prod Pchelovod Chem Abstr 6:199