sentences:  Their ambitious project was described as "a 300-page book containing a number of very important documents allegedly proving, without any shadow of doubt, that she really was the first-born daughter of the Czar".This book was published in September 2012 by Martinez Roca Editorial in Spain.It has an extensive introduction by historian and researcher Marie Stravlo, who found the manuscript in Italy in 2010, together with thirty five thousand documents which supposedly prove that the woman known as Marga Boodts was indeed Olga Nikolaevna.