| article html file updated | 6 February 2020 06:08 CET | Update | https://www.mdpi.com/1420-3049/18/12/15501 |
| article html file updated | 20 September 2019 04:17 CEST | Update | - |
| article html file updated | 7 May 2019 20:57 CEST | Update | - |
| article html file updated | 21 March 2019 09:17 CET | Update | - |
| article html file updated | 17 September 2018 10:53 CEST | Original file | - |
| article pdf uploaded. | 16 December 2013 19:59 CET | Updated version of record | https://www.mdpi.com/1420-3049/18/12/15501/pdf |
| article pdf uploaded. | 12 December 2013 13:56 CET | Version of Record | https://www.mdpi.com/1420-3049/18/12/15501/pdf-vor |
