| article html file updated | 8 February 2020 01:19 CET | Update | https://www.mdpi.com/2218-6581/6/1/3 |
| article html file updated | 4 May 2019 07:03 CEST | Update | N/A |
| article html file updated | 30 March 2017 08:56 CEST | Update | N/A |
| article html file updated | 16 March 2017 09:11 CET | Update | N/A |
| article xml uploaded. | 16 March 2017 09:09 CET | Update | https://www.mdpi.com/2218-6581/6/1/3/xml |
| article pdf uploaded. | 16 March 2017 09:09 CET | Updated version of record | https://www.mdpi.com/2218-6581/6/1/3/pdf |
| article html file updated | 12 March 2017 11:03 CET | Original file | N/A |
| article pdf uploaded. | 12 March 2017 11:02 CET | Version of Record | https://www.mdpi.com/2218-6581/6/1/3/pdf-vor |
