- Gütermann. Micro Core Technology®, the threads of tomorrow (05/11/2009) - Dulce Trenado (Gütermann): “There are endless choices for the use of faceted crystal beads” (12/03/2008) - Ángel González Reina (Gütermann): "There is a strong trend to enrich and lend glamour to apparel” (15/12/2005)