Acsessing field data for a views template
Use the Theme: Information in the Advanced part of the view configuration (you need to click the Advanced link to expand it).

Here you can explore all the possible templates for that specific view and specific display. But additionally you can click the specific template and see the default code (in your case you will use Row template I guess). There you can see the available variables.

To print out the specific values, I would recommend Devel module and then the kpr() or dpm() functions, like this: dpm($fields); in your template.

Alternatively, you can use debug($fields); without using the Devel module.

Important: Do not forget to delete these debug functions before deployment.