Counting peaks and valleys in k -colored Motzkin paths. Sapounakis, A.; Tsikouras, P. — 2005 The Electronic Journal of Combinatorics [electronic only]
On k -colored Motzkin words. Sapounakis, A.; Tsikouras, P. — 2004 Journal of Integer Sequences [electronic only]
Meanders and Motzkin words. Panayotopoulos, A.; Tsikouras, P. — 2004 Journal of Integer Sequences [electronic only]
On the dominance partial ordering of Dyck paths. Sapounakis, A.; Tasoulas, I.; Tsikouras, P. — 2006 Journal of Integer Sequences [electronic only]
Recursive generation of k -ary trees. Manes, K.; Sapounakis, A.; Tasoulas, I.; Tsikouras, P. — 2009 Journal of Integer Sequences [electronic only]
General results on the enumeration of strings in Dyck paths. Manes, K.; Sapounakis, A.; Tasoulas, I.; Tsikouras, P. — 2011 The Electronic Journal of Combinatorics [electronic only]