Volume & Issue: Volume 4, Issue 2, Summer and Autumn 2019, Pages 79-208 
3. k-Efficient partitions of graphs

Pages 109-122

10.22049/cco.2019.26446.1112

M Chellali; Teresa W. Haynes; Stephen T. Hedetniemi


4. t-Pancyclic Arcs in Tournaments

Pages 123-130

10.22049/cco.2019.26333.1097

Wei Meng; Steffen Grueter; Yubao Guo; Manu Kapolke; Simon Meesker


7. Different-Distance Sets in a Graph

Pages 151-171

10.22049/cco.2019.26467.1115

Jason T. Hedetniemi; Stephen T. Hedetniemi; Renu C. Renu C. Laskar; Henry Martyn Mulder


10. On Hop Roman Domination in Trees

Pages 201-208

10.22049/cco.2019.26469.1116

Nader Jafari Rad; Abolfazl Poureidi