EOSPS tasking extension: where are the official schemas?

I'm trying to find the offical schemas related to the EO Satellite Tasking Extension for SPS 2.0 as detailed in OGC standard document OGC 10-135. In Annex B of this document it refers to the following schemas:

eosps.xsd spsRequestsExtensions.xsd eoTaskingExtensions.xsd getSensorAvailability.xsd submitSegmentByID.xsd validate.xsd

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