The microscopic theory of superfluid $^4$He
  We present a microscopic theory of superfluid $^4$He, formulated using the overall experimental observations as input information. With the theory of a consistent basis, we answer all of the essential questions regarding He II. 
J. X. Zheng-Johansson (Bristol Univ., UK), B. Johansson (Uppsala   Univ., SW), and P-I. Johansson (Uppsala Univ., SW)