sentences:  However, BCal was unable to use its newly awarded licences as there was no provision in the bilateral air services agreements the UK had concluded with Denmark, Norway and Sweden for another carrier to operate scheduled services on the main trunk routes between London and these countries.This meant that BA and Scandinavian Airlines (SAS) had an effective monopoly on most routes between the UK and Scandinavia.The UK Government agreed to assist BCal in securing reciprocal traffic rights for the London—Scandinavia licences during its negotiations on a new bilateral air services agreement with its three Scandinavian counterparts in December 1978.