| article html file updated | 7 February 2020 09:32 CET | Update | https://www.mdpi.com/1420-3049/21/6/686 |
| article html file updated | 21 September 2019 18:11 CEST | Update | N/A |
| article html file updated | 5 May 2019 14:09 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:14 CET | Update | N/A |
| article html file updated | 12 November 2018 03:59 CET | Update | N/A |
| article html file updated | 29 June 2016 11:50 CEST | Update | N/A |
| article html file updated | 31 May 2016 11:09 CEST | Original file | N/A |
| article xml uploaded. | 31 May 2016 11:06 CEST | Original file | https://www.mdpi.com/1420-3049/21/6/686/xml |
| article pdf uploaded. | 31 May 2016 11:06 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/6/686/pdf |
