• Vegetable variety trials 1977 : preliminary results 

      Persson, Arnulf R.; Rød, Hans Kr. (Research report, 1978)
      Trials of leek, onion, lettuce, sorrel, chervil, cauliflower, radish, turnip, tomato, sweet pepper, eggplant, pickling cucumber, squash, melon, watermelon and sweet corn in Ås.
    • Vegetable variety trials 1978 : preliminary results 

      Persson, Arnulf R.; Rød, Hans Kr. (Research report, 1979)
      Trials of leek, onion, lettuce, chervil, cauliflower, radish, turnip, tomato, sweet pepper, eggplant, pickling cucumber, squash, melon, watermelon and sweet corn in Ås.