a) hvis barnet har en væsentlig tilknytning til den pågældende medlemsstat, bl.a. i kraft af, at en af indehaverne af forældreansvar har sit sædvanlige opholdssted i medlemsstaten, eller at barnet er statsborger i medlemsstaten, og
(a) the child has a substantial connection with that Member State, in particular by virtue of the fact that one of the holders of parental responsibility is habitually resident in that Member State or that the child is a national of that Member State; and