no. 1
Curvature on algebraic plane curves. I
Compositio Mathematica, Tome 35 (1977) no. 1, pp. 57-63.
partie suivante Curvature on holomorphic plane curves. II 
@article{CM_1977__35_1_57_0,
     author = {Ness, Linda},
     title = {Curvature on algebraic plane curves. {I}},
     journal = {Compositio Mathematica},
     pages = {57--63},
     publisher = {Noordhoff International Publishing},
     volume = {35},
     number = {1},
     year = {1977},
     mrnumber = {453752},
     zbl = {0369.32003},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1977__35_1_57_0/}
}
TY  - JOUR
AU  - Ness, Linda
TI  - Curvature on algebraic plane curves. I
JO  - Compositio Mathematica
PY  - 1977
SP  - 57
EP  - 63
VL  - 35
IS  - 1
PB  - Noordhoff International Publishing
UR  - http://archive.numdam.org/item/CM_1977__35_1_57_0/
LA  - en
ID  - CM_1977__35_1_57_0
ER  - 
%0 Journal Article
%A Ness, Linda
%T Curvature on algebraic plane curves. I
%J Compositio Mathematica
%D 1977
%P 57-63
%V 35
%N 1
%I Noordhoff International Publishing
%U http://archive.numdam.org/item/CM_1977__35_1_57_0/
%G en
%F CM_1977__35_1_57_0
Ness, Linda. Curvature on algebraic plane curves. I. Compositio Mathematica, Tome 35 (1977) no. 1, pp. 57-63. http://archive.numdam.org/item/CM_1977__35_1_57_0/

[1] W. Fulton, Algebraic Curves. Benjamin, 1969. | MR | Zbl

[2] S. Kobayashi and K. Nomizu: Foundations of Differential Geometry II.I Interscience Publishers, 1969. | Zbl

[3] Encyklopadie der Mathematischen Wissenschaften: Geometrie. III.C.4 Teubner, Leipzig, 1903-1915, pp. 339-342.