| article html file updated | 11 February 2020 02:42 CET | Update | https://www.mdpi.com/2076-0787/7/4/131 |
| article html file updated | 27 April 2019 20:30 CEST | Update | N/A |
| article html file updated | 13 April 2019 16:22 CEST | Update | N/A |
| article html file updated | 2 April 2019 11:55 CEST | Update | N/A |
| article html file updated | 14 December 2018 02:59 CET | Update | N/A |
| article pdf uploaded. | 14 December 2018 02:58 CET | Updated version of record | https://www.mdpi.com/2076-0787/7/4/131/pdf |
| article xml uploaded. | 14 December 2018 02:58 CET | Update | https://www.mdpi.com/2076-0787/7/4/131/xml |
| article xml file uploaded | 14 December 2018 02:58 CET | Update | N/A |
| article html file updated | 12 December 2018 08:27 CET | Original file | N/A |
| article pdf uploaded. | 12 December 2018 08:25 CET | Version of Record | https://www.mdpi.com/2076-0787/7/4/131/pdf-vor |
| article xml uploaded. | 12 December 2018 08:25 CET | Update | N/A |
| article xml file uploaded | 12 December 2018 08:25 CET | Original file | N/A |
