| article html file updated | 7 February 2020 07:05 CET | Update | https://www.mdpi.com/2220-9964/5/4/49 |
| article html file updated | 5 May 2019 19:00 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:31 CET | Update | N/A |
| article html file updated | 27 April 2016 10:21 CEST | Update | N/A |
| article html file updated | 12 April 2016 13:45 CEST | Update | N/A |
| article pdf uploaded. | 12 April 2016 13:27 CEST | Updated version of record | https://www.mdpi.com/2220-9964/5/4/49/pdf |
| article html file updated | 11 April 2016 08:02 CEST | Original file | N/A |
| article xml uploaded. | 11 April 2016 08:01 CEST | Original file | https://www.mdpi.com/2220-9964/5/4/49/xml |
| article pdf uploaded. | 11 April 2016 08:01 CEST | Version of Record | https://www.mdpi.com/2220-9964/5/4/49/pdf-vor |
