| article html file updated | 7 February 2020 07:20 CET | Update | https://www.mdpi.com/1420-3049/21/4/498 |
| article html file updated | 21 September 2019 15:17 CEST | Update | N/A |
| article html file updated | 5 May 2019 18:29 CEST | Update | N/A |
| article html file updated | 27 March 2019 02:02 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 | 20 April 2016 03:12 CEST | Update | N/A |
| article xml uploaded. | 20 April 2016 03:11 CEST | Update | https://www.mdpi.com/1420-3049/21/4/498/xml |
| article pdf uploaded. | 20 April 2016 03:11 CEST | Updated version of record | https://www.mdpi.com/1420-3049/21/4/498/pdf |
| article html file updated | 15 April 2016 12:22 CEST | Original file | N/A |
| article pdf uploaded. | 15 April 2016 12:21 CEST | Version of Record | https://www.mdpi.com/1420-3049/21/4/498/pdf-vor |