| article html file updated | 7 February 2020 23:50 CET | Update | https://www.mdpi.com/2073-4352/7/2/59 |
| article html file updated | 23 September 2019 10:29 CEST | Update | N/A |
| article html file updated | 4 May 2019 10:21 CEST | Update | N/A |
| article html file updated | 2 March 2017 03:49 CET | Update | N/A |
| article html file updated | 21 February 2017 18:26 CET | Original file | N/A |
| article xml uploaded. | 21 February 2017 18:24 CET | Original file | https://www.mdpi.com/2073-4352/7/2/59/xml |
| article pdf uploaded. | 21 February 2017 18:24 CET | Updated version of record | https://www.mdpi.com/2073-4352/7/2/59/pdf |
| article pdf uploaded. | 20 February 2017 15:29 CET | Version of Record | https://www.mdpi.com/2073-4352/7/2/59/pdf-vor |
