| article html file updated | 8 February 2020 08:57 CET | Update | https://www.mdpi.com/2076-3425/7/7/70 |
| article html file updated | 25 September 2019 11:58 CEST | Update | N/A |
| article html file updated | 3 May 2019 16:10 CEST | Update | N/A |
| article html file updated | 28 July 2017 11:01 CEST | Update | N/A |
| article html file updated | 23 June 2017 05:40 CEST | Original file | N/A |
| article xml uploaded. | 23 June 2017 05:39 CEST | Original file | https://www.mdpi.com/2076-3425/7/7/70/xml |
| article pdf uploaded. | 23 June 2017 05:39 CEST | Updated version of record | https://www.mdpi.com/2076-3425/7/7/70/pdf |
| article pdf uploaded. | 22 June 2017 11:35 CEST | Version of Record | https://www.mdpi.com/2076-3425/7/7/70/pdf-vor |
