| article html file updated | 7 February 2020 07:15 CET | Update | https://www.mdpi.com/2075-4663/4/2/23 |
| article html file updated | 21 September 2019 15:07 CEST | Update | N/A |
| article html file updated | 5 May 2019 18:39 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:52 CET | Update | N/A |
| article html file updated | 4 July 2016 10:38 CEST | Update | N/A |
| article html file updated | 18 April 2016 12:01 CEST | Original file | N/A |
| article pdf uploaded. | 18 April 2016 08:21 CEST | Updated version of record | https://www.mdpi.com/2075-4663/4/2/23/pdf |
| article pdf uploaded. | 14 April 2016 11:47 CEST | Version of Record | https://www.mdpi.com/2075-4663/4/2/23/pdf-vor |
