| article html file updated | 7 February 2020 22:46 CET | Update | https://www.mdpi.com/1422-0067/18/2/338 |
| article html file updated | 23 September 2019 04:31 CEST | Update | - |
| article html file updated | 4 May 2019 12:30 CEST | Update | - |
| article html file updated | 2 March 2017 10:00 CET | Update | - |
| article html file updated | 7 February 2017 12:00 CET | Original file | - |
| article xml uploaded. | 7 February 2017 11:59 CET | Original file | https://www.mdpi.com/1422-0067/18/2/338/xml |
| article pdf uploaded. | 7 February 2017 11:59 CET | Version of Record | https://www.mdpi.com/1422-0067/18/2/338/pdf |
