deletions | additions       diff --git a/layout.md b/layout.md  index e40f79d..ba872ec 100644  --- a/layout.md  +++ b/layout.md 
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chapter_Ec_Dif_de_orden__.tex  chapter_Transformada_de_Laplace_y__.tex  chapter_Problemas_de_Frontera_Sturm__.tex  chapter_Modelos_para_ecuaciones_en__.tex chapter_Ecuaciones_lineales_de_2do__.tex