Javaheri, S., Esmaeilei, M., Nikkhah, A., Mirhadi, S., Tahmasebi, G. (1997). 'Stimulatory feeding with pollen substitutes and its effect on development of honey bee colonies', Veterinary Research & Biological Products, 10(2), pp. 122-127. doi: 10.22092/vj.1997.113014
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