Analysis of information sources in references of the Wikipedia article "Estrada europeia 22" in Portuguese language version.
E 22 Holyhead - Chester - Warrington - Manchester - Leeds - Doncaster - Immingham … Amsterdam - Gronningen - Oldenburg - Bremen - Hamburg - Lübeck - Rostock - Stralsund - Sassnitz … Trellenborg - Malmö - Kalmar - Norköping … Ventspils - Riga - Rezekne - Velikie Luki - Moskva - Vladimir - Nizhny Novgorod - Kazan - Elabuga - Perm - Ekaterinburg - Tyumen – Ishim