TY  - JOUR
AU  - B. Birch
TI  - Shabat trees of diameter 4: Appendix to a paper of Zvonkin
JO  - Fundamentalʹnaâ i prikladnaâ matematika
PY  - 2007
SP  - 131
EP  - 135
VL  - 13
IS  - 6
UR  - http://geodesic.mathdoc.fr/item/FPM_2007_13_6_a6/
LA  - ru
ID  - FPM_2007_13_6_a6
ER  -