| Managementul proiectelor C Opran, S Stan, B ABAZA, S NASTASA Comunicare. ro, Bucureşti, 20-23, 2008 | 62 | 2008 |
| Mathematical model for the establishment of the materials machinability S Enache, E Strajescu, C Opran, C Minciu, M Zamfirache CIRP annals 44 (1), 79-82, 1995 | 30 | 1995 |
| Prelucrarea materialelor compozite ceramice şi minerale C Dumitraş, C Opran Editura Tehnică, Bucureşti, 1994 | 25 | 1994 |
| Dynamic stability of the technological machining system in EDM S Enache, C Opran CIRP annals 42 (1), 209-214, 1993 | 19 | 1993 |
| Realistic scenes in CAD application NE Pascu, T Dobrescu, C Opran, G Enciu Procedia Engineering 69, 304-309, 2014 | 18 | 2014 |
| The mathematical model of the ECM with magnetic field C Opran CIRP Annals 38 (1), 207-210, 1989 | 16 | 1989 |
| Managementul riscului C Opran, L Paraipan, S Stan Course support, Cluj-Napoca, 2004 | 15 | 2004 |
| The study of EDM with forced vibration of tool-electrode C Opran, G Stoica, E Strajescu CIRP annals 39 (1), 167-170, 1990 | 14* | 1990 |
| Lean 4.0 dynamic tools for polymeric products manufacturing in Industry 4.0 IR Dănuţ‐Sorin, CG Opran, G Lamanna Macromolecular symposia 396 (1), 2000316, 2021 | 13 | 2021 |
| Project management C Opran, S Stan, P Spânu SNSPA, Comunicare. ro House, Bucharest, Romania, 2008 | 13 | 2008 |
| Lean manufacturing 4.0 of polymeric injection molding products IR Dănuţ‐Sorin, CG Opran, G Lamanna Macromolecular Symposia 389 (1), 1900109, 2020 | 10 | 2020 |
| Mixing, conveying and injection molding hybrid system for conductive polymer composites D Serban, G Lamanna, CG Opran Procedia CIRP 81, 677-682, 2019 | 9 | 2019 |
| Development of an established FE model for the simulation of LVI tests on GFRP plates G Lamanna, C Opran, D Perfetto AIP Conference Proceedings 1981 (1), 2018 | 8 | 2018 |
| Managementul proiectelor M Covrig, C Opran Editura Printech, Bucureşti, 2002 | 8 | 2002 |
| Determination of tool cutting capacity S Enache, E Sträjescu, I Tånase, C Opran CIRP annals 41 (1), 145-149, 1992 | 8 | 1992 |
| Geothermal resources in Romania and their utilization A Butac, C Opran Geothermics 14 (2-3), 371-377, 1985 | 8 | 1985 |
| Researches on design and manufacturing of innovative double gears pumps C Opran, M Pricop, C Teodoru Procedia Engineering 100, 475-481, 2015 | 7 | 2015 |
| Subsurface damage in grinding silicon ceramics TG Dobrescu, NE Pascu, C Opran, AM Bucuresteanu Annals of DAAAM for 2012 & Proceedings of the 23rd International DAAAM …, 2012 | 6 | 2012 |
| Aspects concerning impact tests on composites for rigid implants DL Cotoros, MI Baritz, CM Opran, G Bacanu World Congress on Engineering, London England, 1658-1661, 2009 | 6 | 2009 |
| Cercetări geologice şi hidrogeologice în regiunea dunăreană dintre Jiu şi Călmăţui T Bandrabur, M Feru, C Opran St. tehn. ec., Seria E 6, 105-139, 1963 | 6 | 1963 |
