4 .
Simultaneous phenomenon of antiferroelectricity and ferroelectricity in KDP-type crystals
7 ,
191
9 .
Coupling between protonic E-mode and lattice vibrations in KDP-type crystals
14 ,
617
10 .
A theory of the electric field gradient in KH $ _{2} $ PO $ _{4} $ -type crystals, based on the protonic E-mode
13 ,
441
25 .
Wave vector dependent susceptibility of KD$_{2}$PO$_{4}$ in the Four Cluster Approximation
39 ,
1079
35 .
Velocity and absorption of ultrasonic waves along the transverse direction in KD$_{2}$PO$_{4}$
43 ,
529
72 .
Longitudinal and transversal dielectric constants of KDP-type ferro and antiferroelectrics
71 ,
183