| article html file updated | 8 February 2020 01:57 CET | Update | https://www.mdpi.com/2311-5521/2/1/11 |
| article html file updated | 23 September 2019 22:39 CEST | Update | N/A |
| article html file updated | 4 May 2019 05:40 CEST | Update | N/A |
| article html file updated | 27 October 2017 10:07 CEST | Update | N/A |
| article html file updated | 27 March 2017 05:22 CEST | Update | N/A |
| article html file updated | 24 March 2017 06:58 CET | Update | N/A |
| article html file updated | 21 March 2017 14:36 CET | Original file | N/A |
| article xml uploaded. | 21 March 2017 14:34 CET | Update | https://www.mdpi.com/2311-5521/2/1/11/xml |
| article pdf uploaded. | 21 March 2017 14:34 CET | Version of Record | https://www.mdpi.com/2311-5521/2/1/11/pdf |
