Skoltech reseachers including Olga Musharova, Danylo Vyhovskiy, Sofia Medvedeva, Yulia Zhitnyuk, prof. Konstantin Severinov and Ekaterina Savitskaya have recently published a paper focusing on details of spacer acquisition in CRISPR/Cas systems in the journal of American Society for Microbiology. The full text of the article can be found here.