SHIGEHALLI, Vijayalaxmi; A.MASARGUPPI, Chidanand. Elegant labeling of some graphs and their line graphs. RA Journal Of Applied Research, [S. l.], v. 2, n. 08, p. 571–578, 2016. Disponível em: http://rajournals.in/index.php/rajar/article/view/361. Acesso em: 30 apr. 2024.