<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>13</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Gheorghe Paun</style></author><author><style face="normal" font="default" size="100%">Nicolae Santean</style></author><author><style face="normal" font="default" size="100%">Gabriel Thierrin</style></author><author><style face="normal" font="default" size="100%">Sheng Yu</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">On the robustness of primitive words </style></title><secondary-title><style face="normal" font="default" size="100%">Computación y Sistemas. Revista Iberoamericana de Inteligencia Artificial</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Deletion</style></keyword><keyword><style  face="normal" font="default" size="100%">Density</style></keyword><keyword><style  face="normal" font="default" size="100%">Insertion</style></keyword><keyword><style  face="normal" font="default" size="100%">Language</style></keyword><keyword><style  face="normal" font="default" size="100%">Morphism</style></keyword><keyword><style  face="normal" font="default" size="100%">Primitive</style></keyword><keyword><style  face="normal" font="default" size="100%">Word</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2002</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.ingentaconnect.com/content/els/0166218x/2002/00000117/00000001/art00338</style></url></web-urls></urls><pub-location><style face="normal" font="default" size="100%">Países Bajos</style></pub-location><volume><style face="normal" font="default" size="100%">117</style></volume><pages><style face="normal" font="default" size="100%">239-252</style></pages><abstract><style face="normal" font="default" size="100%">We investigate the effect on primitive words of point mutations (inserting or deleting symbols, substituting a symbol for another one), of morphisms, and of the operation of taking prefixes. Several ways of producing primitive words are obtained in this framework</style></abstract><issue><style face="normal" font="default" size="100%">1,15</style></issue></record></records></xml>