Studies of saharan dust intrusions over bucharest using ceilometer’s measurements and satellite dataDenisa Urlea, Andreea Boscornea, Sorin Nicolae Vâjâiac, Florica Ţoancă, Nicu Barbu, Sabina Ştefan and Ionuț BunescuEPJ Web Conf., 176 (2018) 11004DOI: https://doi.org/10.1051/epjconf/201817611004