| article html file updated | 7 February 2020 05:47 CET | Update | https://www.mdpi.com/1420-3049/21/3/347 |
| article html file updated | 5 May 2019 21:42 CEST | Update | - |
| article html file updated | 26 March 2019 23:16 CET | Update | - |
| article html file updated | 17 September 2018 03:25 CEST | Update | - |
| article html file updated | 31 March 2016 02:56 CEST | Original file | - |
| article pdf uploaded. | 11 March 2016 10:31 CET | Version of Record | https://www.mdpi.com/1420-3049/21/3/347/pdf |
| article xml uploaded. | 11 March 2016 10:31 CET | Original file | https://www.mdpi.com/1420-3049/21/3/347/xml |
