author = {F. Chyzak and I. Gutman and P. Paule},
title = {{Predicting the number of hexagonal systems with 24 and 25 hexagons}},
language = {english},
journal = {Communications in Mathematical and Computer Chemistry},
volume = {40},
pages = {139--151},
isbn_issn = {ISSN: 0340-6253},
year = {1999},
refereed = {yes},
length = {13}