| article html file updated | 8 February 2020 02:33 CET | Update | https://www.mdpi.com/1422-0067/18/4/737 |
| article html file updated | 24 September 2019 01:59 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:22 CEST | Update | N/A |
| article pdf uploaded. | 21 January 2019 05:25 CET | Updated version of record | https://www.mdpi.com/1422-0067/18/4/737/pdf |
| article html file updated | 2 May 2017 05:53 CEST | Update | N/A |
| article html file updated | 20 April 2017 06:11 CEST | Original file | N/A |
| article xml uploaded. | 20 April 2017 06:10 CEST | Update | https://www.mdpi.com/1422-0067/18/4/737/xml |
| article pdf uploaded. | 31 March 2017 11:59 CEST | Updated version of record | https://www.mdpi.com/1422-0067/18/4/737/pdf-vor |
| article pdf uploaded. | 30 March 2017 10:50 CEST | Version of Record | https://www.mdpi.com/1422-0067/18/4/737/pdf-vor |
