Sort=is-referenced-by-count does not return the most cited work!
Created by: moqri
Example: https://api.crossref.org/works?query=Alzheimer&sort=is-referenced-by-count&rows=1 "is-referenced-by-count":5904
Missing https://api.crossref.org/v1/works/http://dx.doi.org/10.1212/wnl.34.7.939 "is-referenced-by-count":13700