Development of stem cracks in young hybrid aspen plantations
Šēnhofa, Silva, Zeps, Mārtiņš, Gailis, Arnis, Kāpostiņš, Rolands, Jansons, Āris
Stem damages caused by heart rot and large poplar borer on hybrid and European aspen
Zeps, Martins, Senhofa, Silva, Zadina, Mara, Neimane, Una, Jansons, Aris