## Volume 50 (2011)

- David S. Herscovici, Benjamin D. Hester and Glenn H. Hurlbert
- M.M. Shikare, S.B. Dhotre and K.V. Dalvi
- Bin Wen, Yang Li and Ce Shi
- András Gyárfás, Miklós Ruszinkó, Gábor N. Sárközy and Richard H. Schelp
- Ellen Gethner and Joshua D. Laison
- More directions in visibility graphs, pp.55–65

- Olga Fourtounelli and P. Katerinis
- Elizabeth J. Billington, D.G. Hoffman, C.C. Lindner and Mariusz Meszka
- Zhongxun Zhu and Gong Chen
- Christos Koukouvinos and Dimitris E. Simos
- Wei-Na Shi, Yong-Liang Pan and Jian Wang
- Mikko Pelto
- Kiki A. Sugeng, Bong N. Herawati, Mirka Miller and Martin Bača
- Atif A. Abueida, James Lefevre and Mary Waterhouse
- Equitable edge coloured Steiner triple systems, pp.155–163

- R. Lakshmi
- Vikram Kamat
- Dengji Qi
- On the second order Eulerian numbers, pp.183–185

- Emeric Deutsch and Sergi Elizalde
- Cycle-up-down permutations, pp.187–199

- M. Cheng, Z. Mo and D. Wu
- Peter J. Cameron, Christian Krattenthaler and Thomas W. Müller
- A note on higher-dimensional magic matrices, pp.207–217

- Robert F. Bailey and Brett Stevens
- Uncoverings on graphs and network reliability, pp.219–231

- Shiying Wang, Guozhen Zhang and Xiuli Wang
- Jennifer Seberry and Sarah Spence Adams
- C.A. Rodger and M.A. Tiemeyer