| article html file updated | 6 February 2020 16:03 CET | Update | https://www.mdpi.com/2220-9964/4/1/262 |
| article html file updated | 7 May 2019 00:47 CEST | Update | - |
| article html file updated | 25 March 2019 21:56 CET | Update | - |
| article html file updated | 21 August 2015 07:49 CEST | Update | - |
| article html file updated | 9 March 2015 11:14 CET | Original file | - |
| article xml file uploaded | 9 March 2015 11:14 CET | Original file | https://www.mdpi.com/2220-9964/4/1/262/xml |
| article pdf uploaded. | 17 February 2015 09:59 CET | Updated version of record | https://www.mdpi.com/2220-9964/4/1/262/pdf |
| article pdf uploaded. | 16 February 2015 16:12 CET | Version of Record | https://www.mdpi.com/2220-9964/4/1/262/pdf-vor |
