It looks like the request to https://api.aminer.org/api/article/alias/open-academic-graph https://api.aminer.org/api/article/alias/open-academic-graph hangs. E

It looks like the request to https://api.aminer.org/api/article/alias/open-academic-graph https://api.aminer.org/api/article/alias/open-academic-graph hangs. Eventually I get '502 bad gateway'.