Tunel spiral (Romanian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Tunel spiral" in Romanian language version.

refsWebsite

Global rank Romanian rank

1,089^th place

1,684^th place

3,220^th place

6,276^th place

google.ch

de Dolezalek: Kehrtunnel. In: Victor von Röll (Edit.): Enzyklopädie des Eisenbahnwesens. Band 6. Berlin / Wien 1914, p. 338. (zeno.org).