Books about Kotzig:

booksTheory and Practice of Combinatorics: A Collection of Articles Honoring Anton Kotzig on the Occasion of His Sixtieth... by Alexander Rosa, Gert Sabidussi and Jean Turgeon (Oct 1982)


Wiki information Kotzig:

Anton Kotzig
Mathematician, Person, Deceased Person, Academic

Anton Kotzig was a Slovak–Canadian mathematician, expert in statistics, combinatorics and graph theory. The Ringel-Kotzig conjecture on graceful labeling of trees is named after him and Gerhard Ringel.