8 May
2017
8 May
'17
10:05 p.m.
2017-05-08 23:44 GMT+02:00 Henri Menke
The percent character in btx field is taken as a comment characters which leads to the rest of the field being discarded. In the MWE below, the URL is cut off at the % sign and everything after it is lost.
See also https://tex.stackexchange.com/q/368730/5763 Best Martin