Cds Documentation

[CoPt123]

Hello everyone,
I am unable to find the documentation for the following CDS views in the S/4HANA 1809 section:

I_PurchaseOrder

I_PurchaseOrderItem

I_Supplier

I_Customer

I_Product

I_Stock

I_Material

I_Movement

I_ProfitCenter

I_GLAccountLineItem

I_SalesAnalysis

I_Project

I_ProjectNetwork

I_SalesCondition

If I check the CDS views at this link, not all the standard CDS views are documented like the ones mentioned above
https://help.sap.com/docs/SAP_S4HANA_ON-PREMISE/ee6ff9b281d8448f96b4fe6c89f2bdc8/8573b810511948c8a99...

Does anyone know how to perform a more in-depth search or where I can find official documentation for these views?

Thank you!