Complex sentence: With Bernard Ghillebaert of France Télécom, he developed a proposal for the GSM group meeting in February 1985 in Oslo.The first technical solution evolved in a GSM subgroup under the leadership of Finn Trosby.
Split into simpler sentences: With Bernard Ghillebaert of France Télécom, he developed a proposal for the GSM group meeting in February 1985 in Oslo. GSM document 19/85, available in the ETSI archive The first technical solution evolved in a GSM subgroup under the leadership of Finn Trosby.