1. HYDROTHERMAL BRECCIA PIPE STRUCTURES – GENERAL FEATURES AND GENETIC CRITERIA – II. PHREATIC BRECCIAS. Authors: CĂLIN TĂMAŞ, JEAN-P. MILÉSI.2. HYDROVOLCANIC BRECCIA PIPE STRUCTURES - GENERAL FEATURES AND GENETIC CRITERIA - I. PHREATOMAGMATIC BRECCIAS. Authors: CĂLIN G. TĂMAŞ, JEAN-P. MILÉSI.