I'm interested in scientific sources or literature regarding speech rate/ tempo of speech of the Spanish language. Do you know any?

Specifically, I'm looking for sources that compare the speech rate of speakers from different spanish-speaking countries. I could only find Schwab (2015) who lists different linguisitc variants and the according speech rates, other sources restrict their analysis to one variant.

Sources don't have to be in English.

Thanks in advance!

I'm interested in scientific sources or literature regarding speech rate/ tempo of speech of the Spanish language. Do you know any?

Specifically, I'm looking for sources that compare the speech rate of speakers from different spanish-speaking countries. I could only find Schwab (2015) who lists different linguisitc variants and the according speech rates, other sources restrict their analysis to one variant.

Sources don't have to be in English.