| article html file updated | 7 February 2020 07:30 CET | Update | https://www.mdpi.com/2304-6732/3/2/20 |
| article html file updated | 5 May 2019 18:09 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:22 CET | Update | N/A |
| article html file updated | 1 July 2016 13:32 CEST | Update | N/A |
| article pdf uploaded. | 21 April 2016 07:53 CEST | Updated version of record | https://www.mdpi.com/2304-6732/3/2/20/pdf |
| article html file updated | 20 April 2016 08:57 CEST | Original file | N/A |
| article xml uploaded. | 20 April 2016 08:56 CEST | Original file | https://www.mdpi.com/2304-6732/3/2/20/xml |
| article pdf uploaded. | 20 April 2016 08:56 CEST | Version of Record | https://www.mdpi.com/2304-6732/3/2/20/pdf-vor |
