| article html file updated | 7 February 2020 04:52 CET | Update | https://www.mdpi.com/1420-3049/21/3/258 |
| article html file updated | 21 September 2019 11:47 CEST | Update | - |
| article html file updated | 5 May 2019 23:37 CEST | Update | - |
| article html file updated | 26 March 2019 21:23 CET | Update | - |
| article html file updated | 17 September 2018 02:56 CEST | Update | - |
| article html file updated | 31 March 2016 02:46 CEST | Original file | - |
| article pdf uploaded. | 23 February 2016 11:16 CET | Version of Record | https://www.mdpi.com/1420-3049/21/3/258/pdf |
| article xml uploaded. | 23 February 2016 11:16 CET | Original file | https://www.mdpi.com/1420-3049/21/3/258/xml |
