Gautam K. Das, Partha Sarathi Mandal, Krishnendu Mukhopadhyaya, Shin-Ichi Nakano: WALCOM: Algorithms and Computation - 13th International Conference, WALCOM 2019, Guwahati, India, February 27 - March 2, 2019, Proceedings. Lecture Notes in Computer Science 11355, Springer 2019, ISBN 978-3-030-10563-1