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2. Autolib’ Official Site,
www.autolib.eu/
(data of access: April 7, 2014)
3. Celiński, I., Sierpiński, G.: A dynamic management of a public transportation fleet. LogForum 9(3), 135–143 (2013)
4. Central Statistical Office,
http://www.stat.gov.pl/gus
(data of access: April 12, 2014)
5. Cities which promote electric cars,
http://www.samochodyelektryczne.org/
(data of access: April 7, 2014)