supplementari agreement agreement march establish intern railwai tariff repres govern member state european coal steel commun meet council regard articl treati april establish european coal steel commun pursuant provis paragraph subparagraph paragraph articl convent transit provis establish intern tariff regard agreement march establish intern railwai tariff regard supplementari agreement march agreement establish intern railwai tariff agre articl item substitut item annex agreement march quot carriag coke itali notwithstand provis articl agreement charg carriag coke consign member state itali vice versa determin purpos calcul italian section charg italian coeffici degress length section distanc itali appli purpos calcul section charg member state nation coeffici degress total distanc length section distanc itali appli quot articl date august substitut april articl supplementari agreement march refer articl text agreement record minut proceed council publish offici journal european commun agreement enter forc supplementari agreement conclud session council held march