| article html file updated | 7 February 2020 05:08 CET | Update | https://www.mdpi.com/1422-0067/17/3/301 |
| article html file updated | 5 May 2019 23:03 CEST | Update | N/A |
| article html file updated | 26 March 2019 21:56 CET | Update | N/A |
| article html file updated | 30 March 2016 12:00 CEST | Original file | N/A |
| article pdf uploaded. | 10 March 2016 04:39 CET | Updated version of record | https://www.mdpi.com/1422-0067/17/3/301/pdf |
| article xml uploaded. | 10 March 2016 04:39 CET | Update | https://www.mdpi.com/1422-0067/17/3/301/xml |
| article pdf uploaded. | 26 February 2016 11:59 CET | Version of Record | https://www.mdpi.com/1422-0067/17/3/301/pdf-vor |
| article xml uploaded. | 26 February 2016 11:59 CET | Original file | N/A |
