@Misc{ MarPao22, author = { Marcellini, Paolo and Paolini, Emanuele }, title = { Origami and fractal solutions of differential systems }, journal = { Imagine Math 8 }, year = { 2022 }, doi = { 10.1007/978-3-030-92690-8_24 }, volume = { 8 }, pages = { 367-377 }, URL = { http://cvgmt.sns.it/paper/5411/ }, note = { cvgmt preprint} }