Lema-Ruminska, J., & Niedojad?o, J. (2012). Direct somatic embryogenesis in dependent on the topophysical position of the explant in cactus Copiapoa tenuissima Ritt. forma monstruosa. Journal of the Professional Association for Cactus Development, 14, 1–6. https://doi.org/10.56890/jpacd.v14i.79