| article html file updated | 8 February 2020 02:24 CET | Update | https://www.mdpi.com/1420-3049/22/4/540 |
| article html file updated | 24 September 2019 01:08 CEST | Update | - |
| article html file updated | 4 May 2019 04:41 CEST | Update | - |
| article html file updated | 11 September 2018 04:52 CEST | Update | - |
| article html file updated | 28 April 2017 10:11 CEST | Update | - |
| article html file updated | 31 March 2017 06:00 CEST | Original file | - |
| article xml uploaded. | 30 March 2017 15:13 CEST | Original file | https://www.mdpi.com/1420-3049/22/4/540/xml |
| article pdf uploaded. | 30 March 2017 15:13 CEST | Updated version of record | https://www.mdpi.com/1420-3049/22/4/540/pdf |
| article pdf uploaded. | 28 March 2017 12:13 CEST | Version of Record | https://www.mdpi.com/1420-3049/22/4/540/pdf-vor |
