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2. Kansvol N. More light in the barn // New agriculture. Moscow, 2006, № 1, pp. 58–62.
3. Kansvol N., Mathias S. FurmehrlichtinsMelkstandsorgon. // Fortschritliche Landwist, 2013, № 4, pp. 14–15.
4. https://ltcompany.com/ru/products/types/industrial-luminaires/up-to-5-meters/inox-led/inox-led-70-ovp-5000k/
5. http://varton.ru/products/product/158/