administr commiss european commun social secur migrant worker decis march interpret articl regul eec regard oblig recalcul current benefit gt administr commiss european commun social secur migrant worker regard articl council regul eec made respons deal question interpret aris council regul eec eec regard articl regul eec amend regul eec articl regul eec rate convers nation currenc amount shown nation currenc award recalcul benefit refer articl list introduct refer period refer articl regul eec benefit recalcul quarter difficult implement case pension lead delai payment act accord provis articl regul eec decid quot articl interpret asdetermin rate convers applic whenbenefit fix recalcul inaccord articl regul eec hand articl involv nooblig recalcul current benefit especiallypens month appli rate ofconvers articl decis publish officialjourn european commun enterinto forc januari quot chairman administr commiss hyne