@article{AMI_2013_41_a10,
     author = {Tam\'as Lengyel},
     title = {On divisibility properties of some differences of {Motzkin} numbers},
     journal = {Annales mathematicae et informaticae},
     pages = {121--136},
     publisher = {mathdoc},
     volume = {41},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AMI_2013_41_a10/}
}