| article html file updated | 9 February 2020 12:08 CET | Update | https://www.mdpi.com/2313-4321/3/2/12 |
| article html file updated | 2 October 2019 04:37 CEST | Update | N/A |
| article html file updated | 1 May 2019 06:53 CEST | Update | N/A |
| article html file updated | 17 April 2019 06:55 CEST | Update | N/A |
| article html file updated | 29 March 2019 11:48 CET | Update | N/A |
| article html file updated | 3 April 2018 13:38 CEST | Original file | N/A |
| article xml uploaded. | 3 April 2018 02:56 CEST | Original file | https://www.mdpi.com/2313-4321/3/2/12/xml |
| article pdf uploaded. | 3 April 2018 02:56 CEST | Updated version of record | https://www.mdpi.com/2313-4321/3/2/12/pdf |
| article pdf uploaded. | 1 April 2018 11:59 CEST | Version of Record | https://www.mdpi.com/2313-4321/3/2/12/pdf-vor |
