Text ( visual ) : unmediated Quantum liquids : lectures presented at the International School of Low Temperature Physics, Erice, Italy, June 11-25, 1977 / edited by J. Ruvalds and T. Regge. -- Amsterdam ; New York : North-Holland Pub. Co. ; New York : sole distributors for the U.S.A. and Canada, Elsevier/North-Holland , 1978. -- ix, 328 p. : ill. ; 23 cm. -- Includes bibliographical references and index. -- ISBN 0444851178 ; (BA07317938) ; https://ci.nii.ac.jp/ncid/BA07317938 Author Heading(s): International School of Low Temperature Physics ; Ruvalds, J. ; Regge, Tullio ; Ettore Majorana International Centre for Scientific Culture. -- Classification(s): LCC : QC145.45.H4 ; DC : 546/.751. -- Subject Heading(s): LCSH : Liquid helium -- Congresses