| article html file updated | 7 February 2020 05:42 CET | Update | https://www.mdpi.com/2220-9964/5/3/34 |
| article html file updated | 5 May 2019 21:52 CEST | Update | N/A |
| article html file updated | 26 March 2019 23:06 CET | Update | N/A |
| article html file updated | 7 June 2016 10:17 CEST | Update | N/A |
| article html file updated | 7 June 2016 09:19 CEST | Update | N/A |
| article xml uploaded. | 7 June 2016 09:17 CEST | Update | https://www.mdpi.com/2220-9964/5/3/34/xml |
| article pdf uploaded. | 7 June 2016 09:17 CEST | Updated version of record | https://www.mdpi.com/2220-9964/5/3/34/pdf |
| article html file updated | 28 March 2016 11:23 CEST | Original file | N/A |
