| Classification of huminite—ICCP System 1994 I Sýkorová, W Pickel, K Christanis, M Wolf, GH Taylor, D Flores International Journal of Coal Geology 62 (1-2), 85-106, 2005 | 376 | 2005 |
| Classification of liptinite–ICCP System 1994 W Pickel, J Kus, D Flores, S Kalaitzidis, K Christanis, BJ Cardott, ... International Journal of Coal Geology 169, 40-61, 2017 | 214 | 2017 |
| Review and update of the applications of organic petrology: Part 1, geological applications I Suarez-Ruiz, D Flores, JG Mendonca Filho, PC Hackley International Journal of Coal Geology 99, 54-112, 2012 | 194 | 2012 |
| Identification of nanominerals and nanoparticles in burning coal waste piles from Portugal J Ribeiro, D Flores, CR Ward, LFO Silva Science of the Total Environment 408 (23), 6032-6041, 2010 | 162 | 2010 |
| Correlation between optical, chemical and micro-structural parameters of high-rank coals and graphite M Marqués, I Suárez-Ruiz, D Flores, A Guedes, S Rodrigues International Journal of Coal Geology 77 (3-4), 377-382, 2009 | 101 | 2009 |
| Mineral speciation and fate of some hazardous contaminants in coal waste pile from anthracite mining in Portugal J Ribeiro, SR Taffarel, CH Sampaio, D Flores, LFO Silva International Journal of Coal Geology 109, 15-23, 2013 | 100 | 2013 |
| Standardization of reflectance measurements in dispersed organic matter: Results of an exercise to improve interlaboratory agreement PC Hackley, CV Araujo, AG Borrego, A Bouzinos, BJ Cardott, AC Cook, ... Marine and Petroleum Geology 59, 22-34, 2015 | 87 | 2015 |
| Polycyclic aromatic hydrocarbons (PAHs) in burning and non-burning coal waste piles J Ribeiro, T Silva, JG Mendonca Filho, D Flores Journal of hazardous materials 199, 105-110, 2012 | 84 | 2012 |
| Burning of coal waste piles from Douro Coalfield (Portugal): petrological, geochemical and mineralogical characterization J Ribeiro, EF da Silva, D Flores International Journal of Coal Geology 81 (4), 359-372, 2010 | 83 | 2010 |
| Extensive FE-SEM/EDS, HR-TEM/EDS and ToF-SIMS studies of micron-to nano-particles in anthracite fly ash J Ribeiro, K DaBoit, D Flores, MA Kronbauer, LFO Silva Science of the total environment 452, 98-107, 2013 | 80 | 2013 |
| Organic facies and depositional palaeoenvironment of lignites from Rio Maior Basin (Portugal) D Flores International Journal of Coal Geology 48 (3-4), 181-195, 2002 | 66 | 2002 |
| The procedure used to develop a coal char classification—Commission III Combustion Working Group of the International Committee for Coal and Organic Petrology E Lester, D Alvarez, AG Borrego, B Valentim, D Flores, DA Clift, ... International Journal of Coal Geology 81 (4), 333-342, 2010 | 59 | 2010 |
| Petrographic, mineralogical and geochemical characterization of the Serrinha coal waste pile (Douro Coalfield, Portugal) and the potential environmental impacts on soil … J Ribeiro, EF Da Silva, Z Li, C Ward, D Flores International Journal of Coal Geology 83 (4), 456-466, 2010 | 56 | 2010 |
| Characterization of fly ash from a power plant and surroundings by micro-Raman spectroscopy A Guedes, B Valentim, AC Prieto, A Sanz, D Flores, F Noronha International Journal of Coal Geology 73 (3-4), 359-370, 2008 | 51 | 2008 |
| Tectonostratigraphy of Middle and Upper Palaeozoic black shales from the Porto-Tomar-Ferreira do Alentejo shear zone (W Portugal): new perspectives on the Iberian Massif HI Chaminé, LCG Pereira, PE Fonseca, LP Moço, JP Fernandes, ... Geobios 36 (6), 649-663, 2003 | 47 | 2003 |
| Geochemistry, mineralogy and technological properties of coals from Rio Maior (Portugal) and Peñarroya (Spain) basins I Suárez-Ruiz, D Flores, MM Marques, MR Martinez-Tarazona, J Pis, ... International Journal of Coal Geology 67 (3), 171-190, 2006 | 45 | 2006 |
| Microstructural investigations of natural and synthetic graphites and semi-graphites S Rodrigues, M Marques, I Suárez-Ruiz, I Camean, D Flores, ... International Journal of Coal Geology 111, 67-79, 2013 | 42 | 2013 |
| A progress report on the Alpern Coal Classification B Alpern, MJL De Sousa, D Flores International journal of coal geology 13 (1-4), 1-19, 1989 | 41 | 1989 |
| Comprehensive characterization of anthracite fly ash from a thermo-electric power plant and its potential environmental impact J Ribeiro, B Valentim, C Ward, D Flores International Journal of Coal Geology 86 (2-3), 204-212, 2011 | 38 | 2011 |
| Review and update of the applications of organic petrology: Part 2, geological and multidisciplinary applications I Suárez-Ruiz, D Flores, JG Mendonça Filho, PC Hackley International Journal of Coal Geology 98, 73-94, 2012 | 35 | 2012 |
