| article html file updated | 7 February 2020 07:21 CET | Update | https://www.mdpi.com/1420-3049/21/4/497 |
| article html file updated | 21 September 2019 15:19 CEST | Update | N/A |
| article html file updated | 5 May 2019 18:28 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:03 CET | Update | N/A |
| article html file updated | 17 September 2018 04:07 CEST | Update | N/A |
| article html file updated | 28 April 2016 11:59 CEST | Update | N/A |
| article html file updated | 15 April 2016 13:28 CEST | Original file | N/A |
| article xml uploaded. | 15 April 2016 13:27 CEST | Update | https://www.mdpi.com/1420-3049/21/4/497/xml |
| article pdf uploaded. | 15 April 2016 13:26 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/4/497/pdf |
