?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Eileen&rft.au=O'Connor%2C+Eileen&rft.aulast=O'Connor&rft.title='There+is+a+lot+to+be+learnt'%3A+assistant+principals'+perceptions+of+their+professional+learning+experiences+and+learning+needs+in+their+role+as+middle+leaders+in+Irish+post-primary+schools&rft.inst=Institute+of+Education%2C+University+of+London&rft.tpages=150&rft.degree=Doctoral&rft.date=2008