Wunf 400 Upd Fix

The number could refer to one of two things:

[Unipump UPF / UPF3 Series](https://unipump.ru/catalog--cirkulacionnye-nasosy/filter/series-is-upf3/apply/) 3-Phase x 400V Casing Architecture Single & Twin (D) Options Max Liquid Temp Up to +120°C Speed Selection 3-Stage Manual Control Primary Material Cast Iron Volute / Stainless Impeller Installation and Maintenance Protocols wunf 400 upd

The "proper paper" you likely need is the titled "Probabilistic Time Estimation of Tunneling Projects: The Uri Headrace Tunnel in India," published in Rock Mechanics and Rock Engineering . The number could refer to one of two