| article html file updated | 7 February 2020 23:00 CET | Update | https://www.mdpi.com/2312-7481/3/1/8 |
| article html file updated | 23 September 2019 05:48 CEST | Update | N/A |
| article html file updated | 4 May 2019 12:02 CEST | Update | N/A |
| article html file updated | 29 March 2017 08:49 CEST | Update | N/A |
| article html file updated | 27 February 2017 02:08 CET | Original file | N/A |
| article xml uploaded. | 27 February 2017 02:07 CET | Original file | https://www.mdpi.com/2312-7481/3/1/8/xml |
| article pdf uploaded. | 27 February 2017 02:07 CET | Updated version of record | https://www.mdpi.com/2312-7481/3/1/8/pdf |
| article pdf uploaded. | 9 February 2017 15:08 CET | Version of Record | https://www.mdpi.com/2312-7481/3/1/8/pdf-vor |
