Majcher, A., A. Cwiek, M. Cwiok, L. Mankiewicz, M. Zaremba, and A. F. Zarnecki. “‘PI OF THE SKY’ OFF-LINE EXPERIMENT WITH GLORIA”. Acta Polytechnica, vol. 54, no. 3, June 2014, pp. 205-9, doi:10.14311/AP.2014.54.0205.