| article html file updated | 9 February 2020 10:32 CET | Update | https://www.mdpi.com/2309-608X/4/1/40 |
| article html file updated | 1 May 2019 10:16 CEST | Update | - |
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| article html file updated | 28 March 2018 10:29 CEST | Update | - |
| article html file updated | 21 March 2018 11:17 CET | Update | - |
| article xml uploaded. | 21 March 2018 11:16 CET | Update | https://www.mdpi.com/2309-608X/4/1/40/xml |
| article pdf uploaded. | 21 March 2018 11:16 CET | Updated version of record | https://www.mdpi.com/2309-608X/4/1/40/pdf |
| article html file updated | 21 March 2018 08:21 CET | Original file | - |
| article pdf uploaded. | 21 March 2018 08:20 CET | Updated version of record | https://www.mdpi.com/2309-608X/4/1/40/pdf-vor |
| article pdf uploaded. | 20 March 2018 17:33 CET | Version of Record | https://www.mdpi.com/2309-608X/4/1/40/pdf-vor |
