| article html file updated | 12 November 2022 09:33 CET | Update | https://www.mdpi.com/1422-0067/1/3/61 |
| article html file updated | 5 February 2020 11:15 CET | Update | - |
| article html file updated | 18 September 2019 16:31 CEST | Update | - |
| article html file updated | 9 May 2019 13:26 CEST | Update | - |
| article html file updated | 19 March 2019 16:33 CET | Update | - |
| article html file updated | 21 July 2017 07:49 CEST | Update | - |
| article html file updated | 21 July 2017 07:48 CEST | Update | - |
| article html file updated | 21 July 2017 07:47 CEST | Original file | - |
| article xml uploaded. | 21 July 2017 07:46 CEST | Original file | https://www.mdpi.com/1422-0067/1/3/61/xml |
