Action plan to increase the availability of small quantities of seed potatoes for local and heritage varieties (Latvia, Estonia, Finland) - Skrabule, Ilze; Dimante, Ilze; Rokka, Veli-Matti; Heinonen, Maarit; Tähtjärv, Terje; Kubarsepp, Liisa; Paavilainen, Kaarina (Agroresursu un ekonomikas institūts, 2025)