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Are you Germán Sierra, author of the books below?
The Artifact by Germán Sierra Standards by Germán Sierra Intente usar otras palabras by Germán Sierra Alto Voltaje/ High Voltage by Germán Sierra Efectos secundarios by Germán Sierra El espacio aparentemente perdido by Germán Sierra Fabulae by Germán Sierra El artefacto (Qué nos contamos hoy ? nº 10) by Germán Sierra La Felicidad No Da El Dinero/ Happiness Doesn't Give Money by Germán Sierra Alto voltaje by Germán Sierra


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