| article html file updated | 7 February 2020 06:53 CET | Update | https://www.mdpi.com/2072-666X/7/4/61 |
| article html file updated | 21 September 2019 14:33 CEST | Update | N/A |
| article html file updated | 5 May 2019 19:29 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:08 CET | Update | N/A |
| article html file updated | 15 October 2018 04:15 CEST | Update | N/A |
| article html file updated | 29 April 2016 05:31 CEST | Update | N/A |
| article html file updated | 6 April 2016 11:48 CEST | Original file | N/A |
| article xml uploaded. | 6 April 2016 11:46 CEST | Original file | https://www.mdpi.com/2072-666X/7/4/61/xml |
| article pdf uploaded. | 6 April 2016 11:46 CEST | Version of Record | https://www.mdpi.com/2072-666X/7/4/61/pdf |
