nb refs checking in is_well_embedded
nb refs checking in is_well_embedded

untereiner/CGoGN_2,david-cazier/CGoGN_2,untereiner/CGoGN_2,cgogn/CGoGN_2,david-cazier/CGoGN_2,cgogn/CGoGN_2,etienneschmitt/CGoGN_2