共 18 条
[3]
Buckley F., 1990, Distance in Graphs
[4]
Cvetkoci D.M., 1980, SPECTRA GRAPHS THEOR
[8]
ENTRINGER RC, 1976, CZECH MATH J, V26, P283
[9]
Gutman I, 2002, Z NATURFORSCH A, V57, P824
[10]
GUTMAN I, 1993, INDIAN J CHEM A, V32, P651