1 Gill PA, "Winter hardness on autumn sown onions (Allium cepa L)" 23 : 17-, 1983
2 Tronickova E, "The winter hardness of onion varieties sown in August" 1 : 13-, 1971
3 Brewster JL, "The response of growth rate to temperature in seeding of several Allium crop species" 93 : 351-, 1979
4 Cho CH, "Meteorological constraints and countermeasures in winter crop production" 27 : 411-434, 1982
5 Suh HS, "Influence of weather condition for grain yield in barley" 31 (31): 318-325, 1986
6 Suh JK, "Influence of sowing dates and seeding ages on growth and yield under mulching culture in onion (Allium cepa L.)" 38 (38): 633-639, 1996
7 Lee ET, "Guide of agriculture technology in onion. Rural Development Administration"
8 Hahn GP, "Effect of planting time on the advanced production of onion in the southern area in korea" 29 (29): 228-232, 1987
9 Lee ET, "Development commercial technique for labor saving and crop situation of onion and garlic" 8-13, 2013
10 MAFRA, "Agriculture, Food and rural affairs statistics yearbook"
1 Gill PA, "Winter hardness on autumn sown onions (Allium cepa L)" 23 : 17-, 1983
2 Tronickova E, "The winter hardness of onion varieties sown in August" 1 : 13-, 1971
3 Brewster JL, "The response of growth rate to temperature in seeding of several Allium crop species" 93 : 351-, 1979
4 Cho CH, "Meteorological constraints and countermeasures in winter crop production" 27 : 411-434, 1982
5 Suh HS, "Influence of weather condition for grain yield in barley" 31 (31): 318-325, 1986
6 Suh JK, "Influence of sowing dates and seeding ages on growth and yield under mulching culture in onion (Allium cepa L.)" 38 (38): 633-639, 1996
7 Lee ET, "Guide of agriculture technology in onion. Rural Development Administration"
8 Hahn GP, "Effect of planting time on the advanced production of onion in the southern area in korea" 29 (29): 228-232, 1987
9 Lee ET, "Development commercial technique for labor saving and crop situation of onion and garlic" 8-13, 2013
10 MAFRA, "Agriculture, Food and rural affairs statistics yearbook"
11 Peffley EB, "A technique for onion cold hardness evaluation: effects of plant age and size on hardness" 16 : 773-, 1981