| article html file updated | 8 February 2020 01:53 CET | Update | https://www.mdpi.com/2073-4352/7/3/91 |
| article html file updated | 23 September 2019 22:17 CEST | Update | - |
| article html file updated | 4 May 2019 05:47 CEST | Update | - |
| article html file updated | 28 March 2017 09:10 CEST | Update | - |
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| article html file updated | 24 March 2017 06:46 CET | Update | - |
| article html file updated | 22 March 2017 05:34 CET | Original file | - |
| article xml uploaded. | 22 March 2017 05:33 CET | Original file | https://www.mdpi.com/2073-4352/7/3/91/xml |
| article pdf uploaded. | 22 March 2017 05:33 CET | Updated version of record | https://www.mdpi.com/2073-4352/7/3/91/pdf |
| article pdf uploaded. | 21 March 2017 10:54 CET | Version of Record | https://www.mdpi.com/2073-4352/7/3/91/pdf-vor |
