to copies of a paper by A.Jammel's et al.

by C.Gaude to copies of a paper.

by L.Dewez to copies of a paper.

to F.Andre's paper.

to G.Gromov's and M.Roytberg's paper, sent by the Computing Research Center of the USSR Ac. Sci.

to copies of Balkovich's and C.Whitby-Strevens' paper.

to N.Chapin's paper.

by Ned Chapin: "I expect to be contributing a paper."

by J.Gurd and C.Kirkham to copies a paper.

by K.Futatsugi to a paper.

to L.Pietschker's paper.

to K.Omaki's, Y.Mano's and K.Torii's paper.

by D.Reifer to a paper.

by K.Nakamura informing that his paper is being prepared and will be sent in few days.

to copies of G.Fisher's paper.

to copies of A.Catto's and J.Gurd's paper.

for T.Kurosawa: "Please send promptly cover-page."

for A.Sanchez: "Please send promptly cover-page."

on a form of the Complutum University (Universidad Complutense, Madrid).

The lacking cover page of S.Bandyopadhyay's paper is required.