Perform crossref search for a single reference

Requires the `rcrossref` package.

search_reference_single(query, limit = 1, min_score = 85)

Arguments

query	Citation string (length 1) to search for DOI
limit	Number of results to return
min_score	Minimum match score. Default (85) is fairly strict.

Value

`data.frame` containing crossref information converted to match bety citations table.