export function resolveStringReferences(o: BibStringComponent, seenBeforeStack: { [key: string]: boolean },
                                        alreadyResolved: { [key: string]: /*Resolved*/FieldValue },
                                        refs: { [key: string]: FieldValue }): BibStringData {
    return o.data.map(datum => {
        if (isString(datum) || isNumber(datum)) return datum;