Jean-Pierre Tillich, Gilles Zémor. On the minimum distance of structured LDPC codes with two variable nodes of degree 2 per parity-check equation. In Proceedings 2006 IEEE International Symposium on Information Theory, ISIT 2006, The Westin Seattle, Seattle, Washington, USA, July 9-14, 2006. pages 1549-1553, IEEE, 2006. [doi]