| article html file updated | 7 February 2020 07:50 CET | Update | https://www.mdpi.com/1420-3049/21/5/552 |
| article html file updated | 21 September 2019 16:01 CEST | Update | N/A |
| article html file updated | 5 May 2019 17:30 CEST | Update | N/A |
| article html file updated | 27 March 2019 03:03 CET | Update | N/A |
| article html file updated | 17 September 2018 03:38 CEST | Update | N/A |
| article html file updated | 26 May 2016 13:30 CEST | Update | N/A |
| article html file updated | 26 April 2016 12:30 CEST | Original file | N/A |
| article xml uploaded. | 26 April 2016 12:27 CEST | Original file | https://www.mdpi.com/1420-3049/21/5/552/xml |
| article pdf uploaded. | 26 April 2016 12:27 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/5/552/pdf |
