id	domain	url
eltls-4558	dx.doi.org	http://dx.doi.org/10.22158/eltls.v4n1p46
eltls-4558	www.my.vocabularysize.com	www.my.vocabularysize.com
eltls-4558	www.my.vocabularysize.com	http://www.my.vocabularysize.com
eltls-4558	doi.org	https://doi.org/10.1093/ijl/6.4.253
eltls-4558	www.sil.org	http://www.sil.org/ethnologue
eltls-4558	doi.org	https://doi.org/10.1017/s0261444800002822
eltls-4558	doi.org	https://doi.org/10.1017/cbo9780511605789
eltls-4558	doi.org	https://doi.org/10.1515/iral.1972.10.1-4.209