On Edge Bundling and Node Layout for Mutually Connected Directed Graphs. - Naoko Toeda; Rina Nakazawa; Takayuki Itoh; Takafumi Saito; Daniel W. Archambault (IV, 2016)

Convergent drawing for mutually connected directed graphs. - Naoko Toeda; Rina Nakazawa; Takayuki Itoh; Takafumi Saito; Daniel Archambault (J. Vis. Lang. Comput., 2017)