Implementation of micropropagation techniques to enhance the Spanish Elm Breeding and Conservation Programme - David Medel; Pedro Perdiguero; Elena Zafra; Jorge Domínguez; Eva Miranda; Martin Venturas; Juan Antonio Martín; Carmen Collada; David León; Salustiano Iglesias; Luis Gil (Proceedings woody Plant Production Integrating Genetic And Vegetative Propagation Technologies, 2014)