Broad, JJH;      (2016)    Vocational knowledge in motion: rethinking vocational knowledge through vocational teachers’ professional development.                   Journal of Vocational Education & Training , 68  (2)   pp. 143-160.    10.1080/13636820.2015.1128962 <https://doi.org/10.1080/13636820.2015.1128962>.       Green open access