For citations:

Zagumennikov V., Smirnova E., Babaeva E., Timofeeva S. CULTIVATION OF PURPLE CONEFLOWER (ECHINACEA PURPUREA L.) FOR PRODUCTION OF DIFFERENT TYPES OF MEDICINAL PLANT RAW MATERIAL. Vegetable crops of Russia. 2011;(2):30-32. (In Russ.) https://doi.org/10.18619/2072-9146-2011-2-30-32