| article html file updated | 8 February 2020 08:11 CET | Update | https://www.mdpi.com/2312-7481/3/2/22 |
| article html file updated | 25 September 2019 07:48 CEST | Update | N/A |
| article html file updated | 3 May 2019 17:40 CEST | Update | N/A |
| article html file updated | 30 June 2017 09:12 CEST | Update | N/A |
| article html file updated | 13 June 2017 13:23 CEST | Original file | N/A |
| article xml uploaded. | 13 June 2017 13:22 CEST | Original file | https://www.mdpi.com/2312-7481/3/2/22/xml |
| article pdf uploaded. | 13 June 2017 13:22 CEST | Version of Record | https://www.mdpi.com/2312-7481/3/2/22/pdf |
