@Article{ ROBLES_ROSALES:459024-1-459024-9,

author = { AURELIANO MATÍAS ROBLES PÉREZ and JOSE CARLOS ROSALES GONZALEZ } ,

title = { The numerical semigroup of phrases' lengths in a simple alphabet },

journal = { The Scientific World Journal },

year = { 2013 },

volume = { 2013 },

pages = { 459024-1-459024-9 },

doi = { http://www.hindawi.com/journals/tswj/2013/459024/ },

}