| article html file updated | 8 February 2020 08:41 CET | Update | https://www.mdpi.com/2218-273X/7/2/44 |
| article html file updated | 25 September 2019 10:28 CEST | Update | N/A |
| article html file updated | 3 May 2019 16:43 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:42 CEST | Update | N/A |
| article html file updated | 20 June 2017 03:26 CEST | Original file | N/A |
| article xml uploaded. | 20 June 2017 03:24 CEST | Original file | https://www.mdpi.com/2218-273X/7/2/44/xml |
| article pdf uploaded. | 20 June 2017 03:24 CEST | Updated version of record | https://www.mdpi.com/2218-273X/7/2/44/pdf |
