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Portella, G.; Poater, J.; Solà, M. (2005). “Assessment of Clar's aromatic π-sextet rule by means of PDI, NICS and HOMA indicators of local aromaticity”. Journal of Physical Organic Chemistry. 18 (8): 785–791. doi:10.1002/poc.938.
Portella, G.; Poater, J.; Solà, M. (2005). “Assessment of Clar's aromatic π-sextet rule by means of PDI, NICS and HOMA indicators of local aromaticity”. Journal of Physical Organic Chemistry. 18 (8): 785–791. doi:10.1002/poc.938.
Portella, G.; Poater, J.; Solà, M. (2005). “Assessment of Clar's aromatic π-sextet rule by means of PDI, NICS and HOMA indicators of local aromaticity”. Journal of Physical Organic Chemistry. 18 (8): 785–791. doi:10.1002/poc.938.
Portella, G.; Poater, J.; Solà, M. (2005). “Assessment of Clar's aromatic π-sextet rule by means of PDI, NICS and HOMA indicators of local aromaticity”. Journal of Physical Organic Chemistry. 18 (8): 785–791. doi:10.1002/poc.938.
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Tetsuya Arinobu, Ryoshi Ishiwatari, Kunio Kaiho, and Marcos A. Lamolda (1999): "Spike of pyrosynthetic polycyclic aromatic hydrocarbons associated with an abrupt decrease in δ13C of a terrestrial biomarker at the Cretaceous-Tertiary boundary at Caravaca, Spain ". Geology, volume 27, issue 8, pages 723–726 doi:10.1130/0091-7613(1999)027<0723:SOPPAH>2.3.CO;2
