| article html file updated | 7 February 2020 23:48 CET | Update | https://www.mdpi.com/1422-0067/18/2/452 |
| article html file updated | 23 September 2019 10:14 CEST | Update | - |
| article html file updated | 4 May 2019 10:26 CEST | Update | - |
| article html file updated | 2 March 2017 10:17 CET | Update | - |
| article html file updated | 20 February 2017 11:47 CET | Original file | - |
| article xml uploaded. | 20 February 2017 11:46 CET | Original file | https://www.mdpi.com/1422-0067/18/2/452/xml |
| article pdf uploaded. | 20 February 2017 11:46 CET | Version of Record | https://www.mdpi.com/1422-0067/18/2/452/pdf |
