Kelley, R. (1992) “Ultrastructural evidence of receptor-mediated endocytosis during early mouse limb morphogenesis:a three dimensional analysis using deep etching and scanning electron microscopy”, Acta Microscopica, 1(1), pp. 103-108. vailable at: https://acta-microscopica.org/acta/article/view/15 (ccessed: 3July2024).