M. P. Atherton, B. P. Atkin, M. H. Naggar. Kyanite in the Hercynian metamorphic rocks of the Oporto-Viseu belt, North Portugal. njg [Internet]. 1974Jan.1 [cited 2026May8];:189-92. Available from: https://njgjournal.nl/index.php/njg/article/view/14450