@article{Papavassiliou_1993,
title={Spectroscopic studies of (C10H21NH3)2PbI4,
(CH3NH3)(C10H21NH3)2Pb2I7,
(CH3NH3) PbI3,
and similar compounds},
volume={57},
ISSN={0379-6779},
url={http://dx.doi.org/10.1016/0379-6779(93)90530-a},
DOI={10.1016/0379-6779(93)90530-a},
number={1},
journal={Synthetic Metals},
publisher={Elsevier BV},
author={Papavassiliou,
G.C. and Patsis,
A.P. and Lagouvardos,
D.J. and Koutselas,
I.B.},
year={1993},
month=apr,
pages={3889–3894} }