| article html file updated | 7 February 2020 07:06 CET | Update | https://www.mdpi.com/1422-0067/17/4/414 |
| article html file updated | 5 May 2019 18:57 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:34 CET | Update | N/A |
| article html file updated | 28 April 2016 04:37 CEST | Update | N/A |
| article html file updated | 11 April 2016 13:55 CEST | Original file | N/A |
| article xml uploaded. | 11 April 2016 13:54 CEST | Original file | https://www.mdpi.com/1422-0067/17/4/414/xml |
| article pdf uploaded. | 11 April 2016 13:54 CEST | Version of Record | https://www.mdpi.com/1422-0067/17/4/414/pdf |
