| article html file updated | 7 February 2020 10:31 CET | Update | https://www.mdpi.com/1422-0067/17/6/980 |
| article html file updated | 5 May 2019 12:16 CEST | Update | - |
| article html file updated | 27 March 2019 08:06 CET | Update | - |
| article html file updated | 29 June 2016 04:04 CEST | Update | - |
| article html file updated | 21 June 2016 14:57 CEST | Original file | - |
| article xml uploaded. | 21 June 2016 14:56 CEST | Original file | https://www.mdpi.com/1422-0067/17/6/980/xml |
| article pdf uploaded. | 21 June 2016 14:56 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/6/980/pdf |
