Heeringa, Wilbert. 2005. Dialect variation in and around Frisia: classification and relationships. Us Wurk: tydskrift foar Frisistyk 3-4. 125-167.
@article{572434, author = {Heeringa, Wilbert}, journal = {Us Wurk: tydskrift foar Frisistyk}, pages = {125-167}, title = {Dialect variation in and around Frisia: classification and relationships}, volume = {3-4}, year = {2005}, bestfn = {eurasia\heeringa_frisia2005.pdf}, besttxt = {ptxt2\eurasia\heeringa_frisia2005.txt}, fn = {eurasia\heeringa_frisia2005.pdf, eurasia\heeringa_frisia2005_o.pdf}, hhtype = {overview;comparative}, inlg = {English [eng]}, macro_area = {Eurasia}, src = {hh} }