attribution_id,organization_name,attribution_url,is_producer,is_operator,is_authority,is_data_source
MK,GTFS: Mikołaj Kuranowski,https://mkuran.pl/gtfs/,1,0,0,0
PLK,Data: PKP Polskie linie Kolejowe S.A.,https://www.plk-sa.pl/klienci-i-kontrahenci/api-otwarte-dane,0,0,1,1
