Hashemabadi, D., Zahiri Barsari, S., Zaredoost, F., Jadid Solymandarabi, M., & Feizi, H. "Effects of planting date and nano fertilizers on quantity and quality features of saffron in Guilan", Iranian Journal of Horticultural Science, 50, 4, 2020, 879–890. doi: 10.22059/ijhs.2018.261490.1472