Opinion of the Scientific Panel on Plant Health on the pest risk assessment made by Poland on Ambrosia spp. : (Question No EFSA-Q-2006-055B)
Baker, Richard; Caffier, David; Choiseul, James William; De Clercq, Patrick; Dormannsné Simon, Erzsébet; Gerowitt, Bärbel; Karadjova, Olia Evtimova; Lövei, Gábor; Oude Lansink, Alfons; Makowski, David; Manceau, Charles; Manici, Luisa; Perdikis, Dionyssios; Porta Puglia, Angelo; Schans, Jan; Schrader, Gritta; Steffek, Robert; Strömberg, Anita; Tiilikkala, Kari; Lenteren, Johan Coert van; Vloutoglou, Irene (2007)