| article html file updated | 7 February 2020 09:46 CET | Update | https://www.mdpi.com/1420-3049/21/6/731 |
| article html file updated | 21 September 2019 18:29 CEST | Update | N/A |
| article html file updated | 5 May 2019 13:43 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:43 CET | Update | N/A |
| article html file updated | 12 November 2018 04:18 CET | Update | N/A |
| article html file updated | 29 June 2016 11:57 CEST | Update | N/A |
| article html file updated | 4 June 2016 06:09 CEST | Update | N/A |
| article html file updated | 4 June 2016 06:08 CEST | Original file | N/A |
| article xml uploaded. | 4 June 2016 06:07 CEST | Update | https://www.mdpi.com/1420-3049/21/6/731/xml |
| article pdf uploaded. | 4 June 2016 06:07 CEST | Updated version of record | https://www.mdpi.com/1420-3049/21/6/731/pdf |
