| article html file updated | 6 February 2020 00:48 CET | Update | https://www.mdpi.com/1420-3049/18/3/2988 |
| article html file updated | 8 May 2019 07:47 CEST | Update | - |
| article html file updated | 20 March 2019 19:17 CET | Update | - |
| article html file updated | 17 September 2018 06:09 CEST | Original file | - |
| article pdf uploaded. | 7 March 2013 12:02 CET | Updated version of record | https://www.mdpi.com/1420-3049/18/3/2988/pdf |
| article pdf uploaded. | 5 March 2013 10:02 CET | Version of Record | https://www.mdpi.com/1420-3049/18/3/2988/pdf-vor |
