| article html file updated | 7 February 2020 06:29 CET | Update | https://www.mdpi.com/1420-3049/21/4/415 |
| article html file updated | 21 September 2019 14:03 CEST | Update | N/A |
| article html file updated | 5 May 2019 20:16 CEST | Update | N/A |
| article html file updated | 27 March 2019 00:27 CET | Update | N/A |
| article html file updated | 17 September 2018 03:41 CEST | Update | N/A |
| article html file updated | 28 April 2016 11:29 CEST | Update | N/A |
| article html file updated | 26 March 2016 15:38 CET | Original file | N/A |
| article xml uploaded. | 26 March 2016 15:37 CET | Original file | https://www.mdpi.com/1420-3049/21/4/415/xml |
| article pdf uploaded. | 26 March 2016 15:37 CET | Version of Record | https://www.mdpi.com/1420-3049/21/4/415/pdf |
