The article about the theory of a sunken continent under the southeast coast of Iceland is published in the American research journal; Proceedings of the National Academy of Sciences of the United States of America (PNAS) on 30 March 2015.
See articles in forskning.no:
Sunket kontinent under sørøstkysten av Island, Forskning.no, 30.3.2015
http://www.forskning.no/blogg/forskningsetikken/deeply-buried-continental-crust-under-iceland
Other In media coverage:
Forskere tror sunket kontinent ligger under Island, Dagbladet nett, 30.3.2015 & ABC nyheter, 30.3.2015
Fragment of Jan Mayen Microcontinent discovered beneath Iceland points to 'lost continents', International Business Times, 30.3.2015
Deeply-buried-continental-crust-under-iceland ScienceNordic, 31 March
Reference article in PNAS:
Torsvik, T.H et al. 2015: Continental crust beneath southeast Iceland. PNAS. DOI: 10.1073/pnas.1423099112.