@misc{rates+of+used+up+coolant+and+lubricant+in+hard+machining,
    author = {Kundrák, János i Molnar, Viktor},
    title = {Rates of used-up coolant and lubricant in hard machining},
    journal = {Development in Machining Technology - Scientific Research Report, Vol. 2},
    address = {Cracow},
    publisher = {Cracow University of Technology},
    date = {2012}
}