| article html file updated | 8 February 2020 01:31 CET | Update | https://www.mdpi.com/2311-5629/3/1/8 |
| article html file updated | 23 September 2019 20:05 CEST | Update | - |
| article html file updated | 4 May 2019 06:37 CEST | Update | - |
| article html file updated | 22 March 2017 11:16 CET | Update | - |
| article xml uploaded. | 22 March 2017 11:14 CET | Update | https://www.mdpi.com/2311-5629/3/1/8/xml |
| article pdf uploaded. | 22 March 2017 11:14 CET | Updated version of record | https://www.mdpi.com/2311-5629/3/1/8/pdf |
| article html file updated | 15 March 2017 13:07 CET | Original file | - |
| article pdf uploaded. | 15 March 2017 13:05 CET | Version of Record | https://www.mdpi.com/2311-5629/3/1/8/pdf-vor |
