[2] Banderier C., Schwer S.R.: 
Why Delannoy numbers?. J. Statist. Plann. Inference 135 1 (2005), 40-54; CoRR math.CO/0411128: (2004). 
MR 2202337 | 
Zbl 1074.01012[3] Conway J.H., Sloane N.J.A.: 
Low dimensional lattices VII: Coordination sequences. Proc. Royal Soc. London Ser. A 453 (1997), 1966 2369-2389; citeseer.ist.psu.edu/article/conway96lowdimensional.html. 
MR 1480120 | 
Zbl 1066.11505[4] Delannoy H.: Emploi de l'échiquier pour la résolution de certains problèmes de probabilités. Association Francaise pour l'Avancement des Sciences, Bordeaux XXIV (1895), 70-90.
[5] 
		
Handbook of Discrete and Combinatorial Mathematics. Eds. K.H. Rosen et al., CRC Press, Boca Raton etc., 2000. 
MR 1725200 | 
Zbl 1044.00002[6] Pólya G., Szegö G.: Aufgaben und Lehrsätze aus der Analysis, I. Springer, Berlin, 1970.
[7] Schröder J.: 
Filling boxes densely and disjointly. Comment. Math. Univ. Carolin. 44 1 (2003), 187-196. 
MR 2045855 | 
Zbl 1099.54011[8] Schröder J.: 
Generalized Schröder numbers and the rotation principle. preprint, 2007. 
MR 2346050[9] Stanley R.P.: 
Enumerative Combinatorics. Vol. 2, Cambridge University Press, Cambridge, 1999. 
MR 1676282 | 
Zbl 0978.05002[10] Vassilev M., Atanassov K.: 
On Delan$[$n$]$oy numbers. Annuaire Univ. Sofia Fac. Math. Inform. 81 (1987), 153-162. 
MR 1291893