TY - JOUR T1 - Performance assessment of PPP surveys with open source software using the GNSS GPS-GLONASS-Galileo constellations JF - Applied Sciences (Switzerland) Y1 - 2020 A1 - Angrisano, A. A1 - Dardanelli, G. A1 - Innac, A. A1 - Pisciotta, A. A1 - Pipitone, C. A1 - Gaglione, S. VL - 10 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85089897851&doi=10.3390%2fAPP10165420&partnerID=40&md5=840e9e4b552a1db3893cbd9690964200 ER -