| article html file updated | 9 February 2020 16:26 CET | Update | https://www.mdpi.com/2227-7102/8/2/66 |
| article html file updated | 3 October 2019 06:35 CEST | Update | N/A |
| article html file updated | 30 April 2019 22:20 CEST | Update | N/A |
| article html file updated | 16 April 2019 22:49 CEST | Update | N/A |
| article html file updated | 29 March 2019 21:57 CET | Update | N/A |
| article html file updated | 27 June 2018 09:16 CEST | Update | N/A |
| article html file updated | 4 May 2018 15:47 CEST | Original file | N/A |
| article pdf uploaded. | 4 May 2018 15:46 CEST | Version of Record | https://www.mdpi.com/2227-7102/8/2/66/pdf |
| article xml uploaded. | 4 May 2018 15:46 CEST | Update | https://www.mdpi.com/2227-7102/8/2/66/xml |
| article xml file uploaded | 4 May 2018 15:46 CEST | Original file | N/A |
