ISBN 3030073904 books & textbook
Graph Theory: Favorite Conjectures and Open Problems - 2 (Problem Books in Mathematics)
Gera, Ralucca Haynes, Teresa W. Hedetniemi, Stephen T.
Springer /2019-01-19 Paperback / 287 Pages
isbn-10: 3030073904 / isbn-13: 9783030073909